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		<title>The Verve – Bittersweet Symphony</title>
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		<dc:creator><![CDATA[carlosmath]]></dc:creator>
		<pubDate>Thu, 09 Apr 2009 23:41:22 +0000</pubDate>
				<category><![CDATA[Música]]></category>
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					<description><![CDATA[Es la canción que me trae recuerdos. Tiempos aquellos de la universidad. Extraño mucho a mis amigos y profesores (sólo algunos) que me ayudaron a seguir adelante.  Gracias amigos por todo. PD: Esta canción fue difundida en la apertura en la ceremonia de mi graduación.  :s Vídeo: Saludos.   Post al azar ¿Quieres leer un [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Es la canción que me trae recuerdos. Tiempos aquellos de la universidad. Extraño mucho a mis amigos y profesores (sólo algunos) que me ayudaron a seguir adelante. </p>
<p>Gracias amigos por todo.</p>
<p>PD: Esta canción fue difundida en la apertura en la ceremonia de mi graduación.  :s</p>
<p>Vídeo:</p>
<p style="text-align:center;"><iframe class="youtube-player" width="600" height="338" src="https://www.youtube.com/embed/Zx3m4e45bTo?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=es&#038;autohide=2&#038;wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></p>
<p>Saludos.</p>
<hr />
<p> </p>
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<p style="text-align:left;"><strong>Post al azar</strong></p>
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<p style="text-align:justify;"><span style="color:#000000;"><em>Si te agradó esta entrada, <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/comments-24.png?w=24&#038;h=24" alt="" width="24" height="24" /> <a href="https://edualgebra.wordpress.com/%C2%A1comenta/"><strong>COMÉNTALO</strong></a> y no olvides suscribirte a este blog para recibir las noticias,cada vez que se publiquen, directamente en tu correo. Para ello, sólo tienes que ingresar a <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/rss-24.png?w=24&#038;h=24" alt="" width="24" height="24" /><a href="https://edualgebra.wordpress.com/suscribirse/"><strong>SUSCRIBIRSE !!</strong></a><strong> </strong>y seguir los pasos que se indican. Ingresa a <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/author-24.png?w=24&#038;h=24" alt="" width="24" height="24" /><a href="https://edualgebra.wordpress.com/about/"><strong>Del Autor</strong></a> si quieres conocer algo más del blog o , si prefieres , puedes  escribirme  en <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/email-24.png?w=24&#038;h=24" alt="" width="24" height="24" /><a href="https://edualgebra.wordpress.com/contacto/"><strong>Contactar</strong></a>. ¡No olvides recomendar este blog a tus amigos!</em></span></p>
<p style="text-align:left;"> </p>
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		<title>¿Números perfectos, amigos y gemelos?</title>
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		<dc:creator><![CDATA[carlosmath]]></dc:creator>
		<pubDate>Thu, 09 Apr 2009 23:02:15 +0000</pubDate>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[carlos torres]]></category>
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					<description><![CDATA[Será cierto eso. Bueno, si tienes curiosidad tienes que leer el siguiente artículo sobre el tema. Les comento que el documento ha sido elaborado para personas de casi todas las edades, asi que no tengas miedo y atrévete a leerlo&#8230; 🙂 Click aquí para descargar el documento.   Post al azar ¿Quieres leer un post [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Será cierto eso. Bueno, si tienes curiosidad tienes que leer el siguiente artículo sobre el tema.</p>
<p>Les comento que el documento ha sido elaborado para personas de casi todas las edades, asi que no tengas miedo y atrévete a leerlo&#8230; <img src="https://s0.wp.com/wp-content/mu-plugins/wpcom-smileys/twemoji/2/72x72/1f642.png" alt="🙂" class="wp-smiley" style="height: 1em; max-height: 1em;" /></p>
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<p><a href="https://edualgebra.wordpress.com/wp-content/uploads/2009/04/11856674.pdf" target="_blank">Click aquí para descargar el documento.</a></p>
<hr />
<p> </p>
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<p style="text-align:left;"><strong>Post al azar</strong></p>
<p><a href="https://edualgebra.wordpress.com/?random"><img loading="lazy" class="size-full wp-image-835 alignleft" title="dados" src="https://edumate.files.wordpress.com/2009/01/dice.jpg?w=600" alt="dados"   /></a><span style="color:#800080;">¿Quieres leer un post al azar? Clic en los dados&#8230;</span></p>
<p style="text-align:justify;"><span style="color:#000000;"><em>Si te agradó esta entrada, <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/comments-24.png?w=24&#038;h=24" alt="" width="24" height="24" /> <a href="https://edualgebra.wordpress.com/%C2%A1comenta/"><strong>COMÉNTALO</strong></a> y no olvides suscribirte a este blog para recibir las noticias,cada vez que se publiquen, directamente en tu correo. Para ello, sólo tienes que ingresar a <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/rss-24.png?w=24&#038;h=24" alt="" width="24" height="24" /><a href="https://edualgebra.wordpress.com/suscribirse/"><strong>SUSCRIBIRSE !!</strong></a><strong> </strong>y seguir los pasos que se indican. Ingresa a <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/author-24.png?w=24&#038;h=24" alt="" width="24" height="24" /><a href="https://edualgebra.wordpress.com/about/"><strong>Del Autor</strong></a> si quieres conocer algo más del blog o , si prefieres , puedes  escribirme  en <img class="alignnone" src="https://edumate.files.wordpress.com/2008/11/email-24.png?w=24&#038;h=24" alt="" width="24" height="24" /><a href="https://edualgebra.wordpress.com/contacto/"><strong>Contactar</strong></a>. ¡No olvides recomendar este blog a tus amigos!</em></span></p>
<p style="text-align:left;"> </p>
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<p style="text-align:center;">El blog de <a href="https://edualgebra.wordpress.com/about/">Carlos Torres</a> es licenciado bajo <a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/2.5/pe/">Creative Commons Reconocimiento-No comercial-Sin obras derivadas 2.5 Perú License</a><br />
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		<title>La matemática en la antigua Grecia</title>
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		<dc:creator><![CDATA[carlosmath]]></dc:creator>
		<pubDate>Thu, 09 Apr 2009 22:47:39 +0000</pubDate>
				<category><![CDATA[historia de la matemática]]></category>
		<category><![CDATA[introducción]]></category>
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					<description><![CDATA[Estimados alumnos, Conocedor de sus curiosidades acerca de la matemática en la antigua Grecia, les dejo con un documento que elaboré cuando cursaba estudios en la universidad. Debo mencionar que el documento no cubre todas las etapas de la historia de la matemática de la antigua Grecia; sin embargo, sirve como una introducción del tema. [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Estimados alumnos,</p>
<p>Conocedor de sus curiosidades acerca de la matemática en la antigua Grecia, les dejo con un documento que elaboré cuando cursaba estudios en la universidad.<br />
Debo mencionar que el documento no cubre todas las etapas de la historia de la matemática de la antigua Grecia; sin embargo, sirve como una introducción del tema.</p>
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<p><a href="https://edualgebra.wordpress.com/wp-content/uploads/2009/04/124674.pdf">Clic aquí para descargar el archivo.</a></p>
<p>Saludos</p>
<p><img src="https://s0.wp.com/latex.php?latex=%5Csqrt%5BProf.%5D%7BCarlos%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Csqrt%5BProf.%5D%7BCarlos%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Csqrt%5BProf.%5D%7BCarlos%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;sqrt[Prof.]{Carlos}" class="latex" /></p>
<hr />
<p> </p>
<p> </p>
<p> </p>
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		<title>Ecuaciones polinomiales cuadráticas (recomendado para 4to año)</title>
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		<dc:creator><![CDATA[carlosmath]]></dc:creator>
		<pubDate>Thu, 09 Apr 2009 22:37:05 +0000</pubDate>
				<category><![CDATA[Álgebra]]></category>
		<category><![CDATA[carlos torres]]></category>
		<category><![CDATA[colegio trilce]]></category>
		<category><![CDATA[ecuación cadrática]]></category>
		<category><![CDATA[ecuación polinomial]]></category>
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					<description><![CDATA[Hola a todos 🙂 Aquí les dejo el material que preparé sobre este tema. Descarga e imprímelo para que tengas otro material de ayuda para que sigas estudiando&#8230; Clic aquí para descargar el material. Saludos. Prof. Carlos Torres N.   Post al azar ¿Quieres leer un post al azar? Clic en los dados&#8230; Si te [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Hola a todos <img src="https://s0.wp.com/wp-content/mu-plugins/wpcom-smileys/twemoji/2/72x72/1f642.png" alt="🙂" class="wp-smiley" style="height: 1em; max-height: 1em;" /></p>
<p>Aquí les dejo el material que preparé sobre este tema. Descarga e imprímelo para que tengas otro material de ayuda para que sigas estudiando&#8230;</p>
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<p>Saludos.</p>
<p>Prof. Carlos Torres N.</p>
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<p> </p>
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<p style="text-align:left;"> </p>
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		<title>The Wallflowers – Heroes</title>
		<link>https://edualgebra.wordpress.com/2009/04/04/the-wallflowers-heroes/</link>
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		<dc:creator><![CDATA[carlosmath]]></dc:creator>
		<pubDate>Sat, 04 Apr 2009 21:37:27 +0000</pubDate>
				<category><![CDATA[Música]]></category>
		<category><![CDATA[Personal]]></category>
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					<description><![CDATA[Les dejo con una canción que tiene un significado especial para mi&#8230;todos podemos ser heroes. Vídeo: Audio (mp3) Letras (en inglés): I, I wish you could swim  Like the dolphins, like dolphins can swim  Though nothing, nothing will keep us together  We can beat them forever and ever  We can be heroes, just for one [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Les dejo con una canción que tiene un significado especial para mi&#8230;todos podemos ser heroes.</p>
<p><em><strong>Vídeo:</strong></em></p>
<p style="text-align:center;"><iframe class="youtube-player" width="600" height="338" src="https://www.youtube.com/embed/1g2VdB4YpzQ?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=es&#038;autohide=2&#038;wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></p>
<p style="text-align:left;"><strong><em>Audio (mp3)</em></strong></p>
<p style="text-align:center;"><strong><em><span style="font-style:normal;font-weight:normal;">Los vídeos de Vodpod ya no están disponibles.</span></em></strong></p>
<p style="text-align:left;"><strong><em><span style="font-style:normal;font-weight:normal;"><em>Letras (en inglés):</em></span></em></strong></p>
<p style="text-align:left;">I, I wish you could swim <br />
Like the dolphins, like dolphins can swim <br />
Though nothing, nothing will keep us together <br />
We can beat them forever and ever <br />
We can be heroes, just for one day </p>
<p>Oh I, I will be king <br />
And you, you will be queen <br />
Though nothing, nothing will drive them away <br />
We can be heroes, just for one day <br />
We can be, yes, it&#8217;s just for one day </p>
<p>I, I remember <br />
Standing by the wall <br />
The guns, they shot above our heads <br />
And we kissed, as though nothing could fall <br />
And the shame was on the other side <br />
Oh, we can beat them, forever and ever <br />
Then we could be heroes, just for one day </p>
<p>We can be heroes <br />
We can be heroes <br />
We can be heroes <br />
We can be heroes, just for one day.</p>
<p style="text-align:left;"> </p>
<p> </p>
<p> </p>
<hr />
<p> </p>
<p> </p>
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<p style="text-align:left;"> </p>
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		<title>Preguntas del simulacro (4to de secundaria-marzo 2009)</title>
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		<dc:creator><![CDATA[carlosmath]]></dc:creator>
		<pubDate>Tue, 31 Mar 2009 03:59:50 +0000</pubDate>
				<category><![CDATA[Álgebra]]></category>
		<category><![CDATA[4to secundaria]]></category>
		<category><![CDATA[colegio]]></category>
		<category><![CDATA[preguntas desarrolladas]]></category>
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					<description><![CDATA[Estimados alumnos, a continuación les dejo las  resoluciones  de las preguntas correspondientes al curso de álgebra.    Problema 56.  Efectuar: Resolución: Como ambas fracciones presentan el mismo denominador (fracciones homgéneas), efectuamos de la siguiente manera Luego, tomando extremos y factorizando 7 Rpta: 7   Problema 57.  Factorizar: . Señalar un factor primo. Resolución: Agrupando y [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Estimados alumnos, a continuación les dejo las  resoluciones  de las preguntas correspondientes al curso de álgebra. </p>
<p> </p>
<div>
<p><span style="color:#008080;"><strong>Problema 56. </strong></span></p>
<p>Efectuar: <img src="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;dfrac{5x+9y}{x+y}+&#92;dfrac{2x-2y}{x+y}" class="latex" /></p>
<p><span style="color:#008080;"><em>Resolución:</em></span></p>
<p>Como ambas fracciones presentan el mismo denominador (fracciones homgéneas), efectuamos de la siguiente manera</p>
<p><img src="https://s0.wp.com/latex.php?latex=%7B%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D%7D%3D%5Cdfrac%7B5x%2B9y%2B2x-2y%7D%7Bx%2By%7D%3D%5Cdfrac%7B7x%2B7y%7D%7Bx%2By%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%7B%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D%7D%3D%5Cdfrac%7B5x%2B9y%2B2x-2y%7D%7Bx%2By%7D%3D%5Cdfrac%7B7x%2B7y%7D%7Bx%2By%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%7B%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D%7D%3D%5Cdfrac%7B5x%2B9y%2B2x-2y%7D%7Bx%2By%7D%3D%5Cdfrac%7B7x%2B7y%7D%7Bx%2By%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="{&#92;dfrac{5x+9y}{x+y}+&#92;dfrac{2x-2y}{x+y}}=&#92;dfrac{5x+9y+2x-2y}{x+y}=&#92;dfrac{7x+7y}{x+y}" class="latex" /></p>
<p>Luego, tomando extremos y factorizando 7</p>
<p><img src="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D%3D%5Cdfrac%7B7%28x%2By%29%7D%7Bx%2By%7D%3D7&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D%3D%5Cdfrac%7B7%28x%2By%29%7D%7Bx%2By%7D%3D7&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Cdfrac%7B5x%2B9y%7D%7Bx%2By%7D%2B%5Cdfrac%7B2x-2y%7D%7Bx%2By%7D%3D%5Cdfrac%7B7%28x%2By%29%7D%7Bx%2By%7D%3D7&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;dfrac{5x+9y}{x+y}+&#92;dfrac{2x-2y}{x+y}=&#92;dfrac{7(x+y)}{x+y}=7" class="latex" /></p>
<p>Rpta: 7</p>
<p> </p>
<p><span style="color:#008080;"><strong>Problema 57. </strong></span></p>
<p>Factorizar: <img src="https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2-ax-bx%2Bab&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2-ax-bx%2Bab&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2-ax-bx%2Bab&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="P_(x)=x^2-ax-bx+ab" class="latex" />. Señalar un factor primo.</p>
<p><span style="color:#008080;"><em>Resolución:</em></span></p>
<p>Agrupando y reordenando convenientemente</p>
<p><img src="https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2-ax-bx%2Bab%3Dx%5E2-%28a%2Bb%29x%2Bab&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2-ax-bx%2Bab%3Dx%5E2-%28a%2Bb%29x%2Bab&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2-ax-bx%2Bab%3Dx%5E2-%28a%2Bb%29x%2Bab&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="P_(x)=x^2-ax-bx+ab=x^2-(a+b)x+ab" class="latex" /></p>
<p>Luego, aplicando aspa simple</p>
<p><img src="https://s0.wp.com/latex.php?latex=x%5E2-%28a%2Bb%29x%2Bab%3D%28x-a%29%28x-b%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%5E2-%28a%2Bb%29x%2Bab%3D%28x-a%29%28x-b%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%5E2-%28a%2Bb%29x%2Bab%3D%28x-a%29%28x-b%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x^2-(a+b)x+ab=(x-a)(x-b)" class="latex" /></p>
<p>De ahí que un factor primo es <img src="https://s0.wp.com/latex.php?latex=x-a&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x-a&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x-a&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x-a" class="latex" /></p>
<p>Rpta: <img src="https://s0.wp.com/latex.php?latex=x-a&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x-a&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x-a&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x-a" class="latex" /></p>
<p> </p>
<p><strong><span style="color:#008080;">Problema 58.</span></strong></p>
<p>Siendo: <img src="https://s0.wp.com/latex.php?latex=a%2Bb%3D9&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=a%2Bb%3D9&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=a%2Bb%3D9&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="a+b=9" class="latex" />, <img src="https://s0.wp.com/latex.php?latex=ab%3D2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=ab%3D2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=ab%3D2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="ab=2" class="latex" />. Calcular: <img src="https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="a^2+b^2" class="latex" /></p>
<p><span style="color:#008080;"><em>Resolución:</em></span></p>
<p>Tomando <img src="https://s0.wp.com/latex.php?latex=a%2Bb%3D9&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=a%2Bb%3D9&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=a%2Bb%3D9&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="a+b=9" class="latex" />, elevamos al cuadrado cada miembro</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%3D9%5E2%5CRightarrow+a%5E2%2B2ab%2Bb%5E2%3D81&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%3D9%5E2%5CRightarrow+a%5E2%2B2ab%2Bb%5E2%3D81&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%3D9%5E2%5CRightarrow+a%5E2%2B2ab%2Bb%5E2%3D81&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b)^2=9^2&#92;Rightarrow a^2+2ab+b^2=81" class="latex" /></p>
<p>Por dato, <img src="https://s0.wp.com/latex.php?latex=ab%3D2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=ab%3D2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=ab%3D2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="ab=2" class="latex" />, entonces reemplazando en la expresión anterior y despejando <img src="https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="a^2+b^2" class="latex" /></p>
<p><img src="https://s0.wp.com/latex.php?latex=a%5E2%2B2%282%29%2Bb%5E2%3D81%5CRightarrow+a%5E2%2Bb%5E2%3D77&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=a%5E2%2B2%282%29%2Bb%5E2%3D81%5CRightarrow+a%5E2%2Bb%5E2%3D77&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=a%5E2%2B2%282%29%2Bb%5E2%3D81%5CRightarrow+a%5E2%2Bb%5E2%3D77&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="a^2+2(2)+b^2=81&#92;Rightarrow a^2+b^2=77" class="latex" /></p>
<p>Rpta: 77</p>
<p> </p>
<p><strong><span style="color:#008080;">Problema 59. </span></strong></p>
<p>Efectuar:</p>
<p><img src="https://s0.wp.com/latex.php?latex=%5Cdfrac%7Bx%2B1%7D%7Bx-1%7D%2B%5Cdfrac%7Bx-1%7D%7Bx%2B1%7D-2%5Cleft%28%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%5Cright%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Cdfrac%7Bx%2B1%7D%7Bx-1%7D%2B%5Cdfrac%7Bx-1%7D%7Bx%2B1%7D-2%5Cleft%28%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%5Cright%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Cdfrac%7Bx%2B1%7D%7Bx-1%7D%2B%5Cdfrac%7Bx-1%7D%7Bx%2B1%7D-2%5Cleft%28%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%5Cright%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;dfrac{x+1}{x-1}+&#92;dfrac{x-1}{x+1}-2&#92;left(&#92;dfrac{x^2+1}{x^2-1}&#92;right)" class="latex" /></p>
<p><em><span style="color:#008080;">Resolución:</span></em></p>
<p>Multiplicando los denominadores por <img src="https://s0.wp.com/latex.php?latex=x%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x+1" class="latex" />, <img src="https://s0.wp.com/latex.php?latex=x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x-1" class="latex" /> respectivamente</p>
<p><img src="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B%28x%2B1%29%28x%2B1%29%7D%7B%28x-1%29%28x%2B1%29%7D%2B%5Cdfrac%7B%28x-1%29%28x-1%29%7D%7B%28x%2B1%29%28x-1%29%7D-2%5Cleft%28%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%5Cright%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B%28x%2B1%29%28x%2B1%29%7D%7B%28x-1%29%28x%2B1%29%7D%2B%5Cdfrac%7B%28x-1%29%28x-1%29%7D%7B%28x%2B1%29%28x-1%29%7D-2%5Cleft%28%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%5Cright%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Cdfrac%7B%28x%2B1%29%28x%2B1%29%7D%7B%28x-1%29%28x%2B1%29%7D%2B%5Cdfrac%7B%28x-1%29%28x-1%29%7D%7B%28x%2B1%29%28x-1%29%7D-2%5Cleft%28%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%5Cright%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;dfrac{(x+1)(x+1)}{(x-1)(x+1)}+&#92;dfrac{(x-1)(x-1)}{(x+1)(x-1)}-2&#92;left(&#92;dfrac{x^2+1}{x^2-1}&#92;right)" class="latex" /></p>
<p>Operando, tenemos</p>
<p><img src="https://s0.wp.com/latex.php?latex=%5Cdfrac%7Bx%5E2%2B2x%2B1%7D%7Bx%5E2-1%7D%2B%5Cdfrac%7Bx%5E2-2x%2B1%7D%7Bx%5E2-1%7D%2B%5Cdfrac%7B-2x%5E2-2%7D%7Bx%5E2-1%7D%3D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Cdfrac%7Bx%5E2%2B2x%2B1%7D%7Bx%5E2-1%7D%2B%5Cdfrac%7Bx%5E2-2x%2B1%7D%7Bx%5E2-1%7D%2B%5Cdfrac%7B-2x%5E2-2%7D%7Bx%5E2-1%7D%3D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Cdfrac%7Bx%5E2%2B2x%2B1%7D%7Bx%5E2-1%7D%2B%5Cdfrac%7Bx%5E2-2x%2B1%7D%7Bx%5E2-1%7D%2B%5Cdfrac%7B-2x%5E2-2%7D%7Bx%5E2-1%7D%3D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;dfrac{x^2+2x+1}{x^2-1}+&#92;dfrac{x^2-2x+1}{x^2-1}+&#92;dfrac{-2x^2-2}{x^2-1}=" class="latex" /></p>
<p>Luego,</p>
<p><img src="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B2x%5E2-2x%5E2-2%7D%7Bx%5E2-1%7D%3D%5Cdfrac%7B0%7D%7Bx%5E2-1%7D%3D0&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%5Cdfrac%7B2x%5E2-2x%5E2-2%7D%7Bx%5E2-1%7D%3D%5Cdfrac%7B0%7D%7Bx%5E2-1%7D%3D0&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%5Cdfrac%7B2x%5E2-2x%5E2-2%7D%7Bx%5E2-1%7D%3D%5Cdfrac%7B0%7D%7Bx%5E2-1%7D%3D0&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="&#92;dfrac{2x^2-2x^2-2}{x^2-1}=&#92;dfrac{0}{x^2-1}=0" class="latex" /></p>
<p>Rpta: 0</p>
<p> </p>
<p><strong><span style="color:#008080;">Problema 60.</span></strong></p>
<p>Factorizar: <img src="https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2%28x-3%29%2B5x%28x-3%29-6%28x%2B3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2%28x-3%29%2B5x%28x-3%29-6%28x%2B3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=P_%28x%29%3Dx%5E2%28x-3%29%2B5x%28x-3%29-6%28x%2B3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="P_(x)=x^2(x-3)+5x(x-3)-6(x+3)" class="latex" />. Señalar la suma de factores primos.</p>
<p><span style="color:#008080;"><em>Resolución:</em></span></p>
<p>Factorizando el factor común <img src="https://s0.wp.com/latex.php?latex=%28x-3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-3)" class="latex" />,</p>
<p><img src="https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-3%29%28x%5E2%2B5x-6%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-3%29%28x%5E2%2B5x-6%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-3%29%28x%5E2%2B5x-6%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="P_(x)=(x-3)(x^2+5x-6)" class="latex" /></p>
<p>Aplicando aspa simple en <img src="https://s0.wp.com/latex.php?latex=x%5E2%2B5x-6&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%5E2%2B5x-6&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%5E2%2B5x-6&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x^2+5x-6" class="latex" />, entonces</p>
<p><img src="https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-3%29%28x%2B6%29%28x-1%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-3%29%28x%2B6%29%28x-1%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-3%29%28x%2B6%29%28x-1%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="P_(x)=(x-3)(x+6)(x-1)" class="latex" /></p>
<p>Sumando los factores primos: <img src="https://s0.wp.com/latex.php?latex=%28x-3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-3%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-3)" class="latex" />, <img src="https://s0.wp.com/latex.php?latex=%28x%2B6%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x%2B6%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x%2B6%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x+6)" class="latex" />, <img src="https://s0.wp.com/latex.php?latex=%28x-1%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)" class="latex" /></p>
<p>Tenemos <img src="https://s0.wp.com/latex.php?latex=3x%2B2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=3x%2B2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=3x%2B2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="3x+2" class="latex" /></p>
<p>Rpta: <img src="https://s0.wp.com/latex.php?latex=3x%2B2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=3x%2B2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=3x%2B2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="3x+2" class="latex" /></p>
<p> </p>
<p><span style="color:#008080;"><strong>Problema 61.</strong></span></p>
<p>Calcular: <img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b)^2+(a+c)^2+(b+c)^2-(a+b+c)^2" class="latex" /></p>
<p><span style="color:#008080;">Resolución:</span></p>
<p>Agrupando y aplicando identidades notables en el término <img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%2Bc%29%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%2Bc%29%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%2Bc%29%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b+c)^2" class="latex" />, tenemos</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28%28a%2Bb%29%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2B2%28a%2Bb%29c%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28%28a%2Bb%29%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2B2%28a%2Bb%29c%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28%28a%2Bb%29%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2B2%28a%2Bb%29c%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="((a+b)+c)^2=(a+b)^2+2(a+b)c+c^2" class="latex" /></p>
<p>Asimismo, para <img src="https://s0.wp.com/latex.php?latex=%28a%2Bc%29%5E2%3Da%5E2%2B2ac%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bc%29%5E2%3Da%5E2%2B2ac%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bc%29%5E2%3Da%5E2%2B2ac%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+c)^2=a^2+2ac+c^2" class="latex" /> y para <img src="https://s0.wp.com/latex.php?latex=%28b%2Bc%29%5E2%3Db%5E2%2B2bc%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28b%2Bc%29%5E2%3Db%5E2%2B2bc%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28b%2Bc%29%5E2%3Db%5E2%2B2bc%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(b+c)^2=b^2+2bc+c^2" class="latex" />.</p>
<p>Luego, reemplazando nos queda</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2Ba%5E2%2B2ac%2Bc%5E2%2Bb%5E2%2B2bc%2Bc%5E2-%28%28a%2Bb%29%5E2%2B2%28a%2Bb%29c%2Bc%5E2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2Ba%5E2%2B2ac%2Bc%5E2%2Bb%5E2%2B2bc%2Bc%5E2-%28%28a%2Bb%29%5E2%2B2%28a%2Bb%29c%2Bc%5E2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2Ba%5E2%2B2ac%2Bc%5E2%2Bb%5E2%2B2bc%2Bc%5E2-%28%28a%2Bb%29%5E2%2B2%28a%2Bb%29c%2Bc%5E2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b)^2+(a+c)^2+(b+c)^2-(a+b+c)^2=(a+b)^2+a^2+2ac+c^2+b^2+2bc+c^2-((a+b)^2+2(a+b)c+c^2)" class="latex" /></p>
<p>Que nos origina</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2Ba%5E2%2B2ac%2Bc%5E2%2Bb%5E2%2B2bc%2Bc%5E2-%28a%2Bb%29%5E2-2ac-2bc-c%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2Ba%5E2%2B2ac%2Bc%5E2%2Bb%5E2%2B2bc%2Bc%5E2-%28a%2Bb%29%5E2-2ac-2bc-c%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3D%28a%2Bb%29%5E2%2Ba%5E2%2B2ac%2Bc%5E2%2Bb%5E2%2B2bc%2Bc%5E2-%28a%2Bb%29%5E2-2ac-2bc-c%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b)^2+(a+c)^2+(b+c)^2-(a+b+c)^2=(a+b)^2+a^2+2ac+c^2+b^2+2bc+c^2-(a+b)^2-2ac-2bc-c^2" class="latex" /></p>
<p>Rpta: <img src="https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=a%5E2%2Bb%5E2%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="a^2+b^2+c^2" class="latex" /></p>
<p>Finalmente, nos queda</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3Da%5E2%2Bb%5E2%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3Da%5E2%2Bb%5E2%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%29%5E2%2B%28a%2Bc%29%5E2%2B%28b%2Bc%29%5E2-%28a%2Bb%2Bc%29%5E2%3Da%5E2%2Bb%5E2%2Bc%5E2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b)^2+(a+c)^2+(b+c)^2-(a+b+c)^2=a^2+b^2+c^2" class="latex" /></p>
<p> </p>
<p><span style="color:#008080;"><strong>Pregunta 62.</strong></span></p>
<p>Efectuar: <img src="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B100%7D-%5Csqrt%5B3%5D%7B20%7D%2B%5Csqrt%5B3%5D%7B4%7D%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B100%7D-%5Csqrt%5B3%5D%7B20%7D%2B%5Csqrt%5B3%5D%7B4%7D%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B100%7D-%5Csqrt%5B3%5D%7B20%7D%2B%5Csqrt%5B3%5D%7B4%7D%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(&#92;sqrt[3]{10}+&#92;sqrt[3]{2})(&#92;sqrt[3]{100}-&#92;sqrt[3]{20}+&#92;sqrt[3]{4})" class="latex" /></p>
<p><span style="color:#008080;">Resolución:</span></p>
<p>Se observa que el enunciado a efectuar se puede escribir de la siguiente manera</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(&#92;sqrt[3]{10}+&#92;sqrt[3]{2})(&#92;sqrt[3]{10^2}-&#92;sqrt[3]{10.2}+&#92;sqrt[3]{2^2})" class="latex" /></p>
<p>Luego, identificándolo con la identidad notable: <img src="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%28a%5E2-ab%2Bb%5E2%29%3Da%5E3%2Bb%5E3&#038;bg=ffcccc&#038;fg=cc00ff&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28a%2Bb%29%28a%5E2-ab%2Bb%5E2%29%3Da%5E3%2Bb%5E3&#038;bg=ffcccc&#038;fg=cc00ff&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28a%2Bb%29%28a%5E2-ab%2Bb%5E2%29%3Da%5E3%2Bb%5E3&#038;bg=ffcccc&#038;fg=cc00ff&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(a+b)(a^2-ab+b^2)=a^3+b^3" class="latex" />, se obtiene</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29%3D%28%5Csqrt%5B3%5D%7B10%7D%29%5E3%2B%28%5Csqrt%5B3%5D%7B2%7D%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29%3D%28%5Csqrt%5B3%5D%7B10%7D%29%5E3%2B%28%5Csqrt%5B3%5D%7B2%7D%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29%3D%28%5Csqrt%5B3%5D%7B10%7D%29%5E3%2B%28%5Csqrt%5B3%5D%7B2%7D%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(&#92;sqrt[3]{10}+&#92;sqrt[3]{2})(&#92;sqrt[3]{10^2}-&#92;sqrt[3]{10.2}+&#92;sqrt[3]{2^2})=(&#92;sqrt[3]{10})^3+(&#92;sqrt[3]{2})^3" class="latex" /></p>
<p>Y que finalmente nos origina:</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29%3D10%2B2%3D12&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29%3D10%2B2%3D12&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28%5Csqrt%5B3%5D%7B10%7D%2B%5Csqrt%5B3%5D%7B2%7D%29%28%5Csqrt%5B3%5D%7B10%5E2%7D-%5Csqrt%5B3%5D%7B10.2%7D%2B%5Csqrt%5B3%5D%7B2%5E2%7D%29%3D10%2B2%3D12&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(&#92;sqrt[3]{10}+&#92;sqrt[3]{2})(&#92;sqrt[3]{10^2}-&#92;sqrt[3]{10.2}+&#92;sqrt[3]{2^2})=10+2=12" class="latex" /></p>
<p>Rpta: <img src="https://s0.wp.com/latex.php?latex=12&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=12&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=12&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="12" class="latex" />.</p>
<p> </p>
<p><span style="color:#008080;"><strong>Pregunta 63.</strong></span></p>
<p>Factorizar: <img src="https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=P_%28x%29%3D%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="P_(x)=(x-y)^3-(x-y)^2-2(x-y)" class="latex" />, indicar un factor primo.</p>
<p><span style="color:#008080;">Resolución:</span></p>
<p>Como el factor común en los tres sumandos es <img src="https://s0.wp.com/latex.php?latex=%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-y)" class="latex" />, lo factorizamos de la siguiente manera</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%5B%28x-y%29%5E2-%28x-y%29-2%5D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%5B%28x-y%29%5E2-%28x-y%29-2%5D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%5B%28x-y%29%5E2-%28x-y%29-2%5D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-y)^3-(x-y)^2-2(x-y)=(x-y)[(x-y)^2-(x-y)-2]" class="latex" /> <span style="color:#ff0000;">*</span></p>
<p>Ahora, llamemos <img src="https://s0.wp.com/latex.php?latex=A%3D%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=A%3D%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=A%3D%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="A=(x-y)" class="latex" /> y hacemos el cambio de variable en el segundo factor, así</p>
<p><img src="https://s0.wp.com/latex.php?latex=A%5E2-A-2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=A%5E2-A-2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=A%5E2-A-2&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="A^2-A-2" class="latex" /></p>
<p>Entonces, factorizamos esta nueva expresión utilizando el método del aspa simple, lo que nos origina</p>
<p><img src="https://s0.wp.com/latex.php?latex=A%5E2-A-2%3D%28A%2B1%29%28A-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=A%5E2-A-2%3D%28A%2B1%29%28A-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=A%5E2-A-2%3D%28A%2B1%29%28A-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="A^2-A-2=(A+1)(A-2)" class="latex" /></p>
<p>Ahora, reemplazando <img src="https://s0.wp.com/latex.php?latex=A&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=A&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=A&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="A" class="latex" /> con su expresión equivalente <img src="https://s0.wp.com/latex.php?latex=%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-y%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-y)" class="latex" />  nos queda</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28A%2B1%29%28A-2%29%3D%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28A%2B1%29%28A-2%29%3D%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28A%2B1%29%28A-2%29%3D%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(A+1)(A-2)=(x-y+1)(x-y-2)" class="latex" /></p>
<p>Finalmente, tenemos que reemplazar esta última expresión en<span style="color:#ff0000;">*</span></p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%5B%28x-y%29%5E2-%28x-y%29-2%5D%3D%28x-y%29%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%5B%28x-y%29%5E2-%28x-y%29-2%5D%3D%28x-y%29%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%5B%28x-y%29%5E2-%28x-y%29-2%5D%3D%28x-y%29%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-y)^3-(x-y)^2-2(x-y)=(x-y)[(x-y)^2-(x-y)-2]=(x-y)(x-y+1)(x-y-2)" class="latex" /></p>
<p>Tomando extremos</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-y%29%5E3-%28x-y%29%5E2-2%28x-y%29%3D%28x-y%29%28x-y%2B1%29%28x-y-2%29&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-y)^3-(x-y)^2-2(x-y)=(x-y)(x-y+1)(x-y-2)" class="latex" /></p>
<p>Uno de sus factores primo es <img src="https://s0.wp.com/latex.php?latex=x-y%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x-y%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x-y%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x-y+1" class="latex" /></p>
<p>Rpta: <img src="https://s0.wp.com/latex.php?latex=x-y%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x-y%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x-y%2B1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x-y+1" class="latex" /></p>
<p> </p>
<p><span style="color:#008080;"><strong>Problema 64.</strong></span></p>
<p>Reducir: <img src="https://s0.wp.com/latex.php?latex=R%3Dx%5E3-3x%5E2%2B12x-6&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=R%3Dx%5E3-3x%5E2%2B12x-6&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=R%3Dx%5E3-3x%5E2%2B12x-6&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="R=x^3-3x^2+12x-6" class="latex" />, si <img src="https://s0.wp.com/latex.php?latex=x%3D1-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%3D1-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%3D1-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x=1-&#92;sqrt[3]{3}+&#92;sqrt[3]{9}" class="latex" /> <span style="color:#0000ff;">(condición)</span></p>
<p><span style="color:#008080;">Resolución:</span></p>
<p>Considerando la identidad <img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3Dx%5E3-3x%5E2%2B3x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3Dx%5E3-3x%5E2%2B3x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3Dx%5E3-3x%5E2%2B3x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3=x^3-3x^2+3x-1" class="latex" />, podemos descomponer <img src="https://s0.wp.com/latex.php?latex=R&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=R&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=R&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="R" class="latex" /> de la siguiente forma</p>
<p><img src="https://s0.wp.com/latex.php?latex=x%5E3-3x%5E2%2B12x-6%3Dx%5E3-3x%5E2%2B3x-1%2B9x-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%5E3-3x%5E2%2B12x-6%3Dx%5E3-3x%5E2%2B3x-1%2B9x-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%5E3-3x%5E2%2B12x-6%3Dx%5E3-3x%5E2%2B3x-1%2B9x-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x^3-3x^2+12x-6=x^3-3x^2+3x-1+9x-5" class="latex" /></p>
<p>Reemplazando con la identidad mencionada anteriormente</p>
<p><img src="https://s0.wp.com/latex.php?latex=x%5E3-3x%5E2%2B3x-1%2B9x-5%3D%28x-1%29%5E3%2B9x-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%5E3-3x%5E2%2B3x-1%2B9x-5%3D%28x-1%29%5E3%2B9x-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%5E3-3x%5E2%2B3x-1%2B9x-5%3D%28x-1%29%5E3%2B9x-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x^3-3x^2+3x-1+9x-5=(x-1)^3+9x-5" class="latex" /><span style="color:#ff0000;">*</span></p>
<p>Por otro lado, de la <span style="color:#0000ff;">condición</span><span style="color:#ff0000;"> <span style="color:#000000;">podemos despejar <img src="https://s0.wp.com/latex.php?latex=x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x-1&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x-1" class="latex" />, así</span></span></p>
<p><span style="color:#ff0000;"><img src="https://s0.wp.com/latex.php?latex=x%3D1-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D%5CRightarrow+x-1%3D%5Csqrt%5B3%5D%7B9%7D-%5Csqrt%5B3%5D%7B3%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x%3D1-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D%5CRightarrow+x-1%3D%5Csqrt%5B3%5D%7B9%7D-%5Csqrt%5B3%5D%7B3%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x%3D1-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D%5CRightarrow+x-1%3D%5Csqrt%5B3%5D%7B9%7D-%5Csqrt%5B3%5D%7B3%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x=1-&#92;sqrt[3]{3}+&#92;sqrt[3]{9}&#92;Rightarrow x-1=&#92;sqrt[3]{9}-&#92;sqrt[3]{3}" class="latex" /></span></p>
<p>Asimismo, hallamos <img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3" class="latex" />, que resulta de elevar cada miembro al cubo</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3D%28%5Csqrt%5B3%5D%7B9%7D%29%5E3-3%5Csqrt%5B3%5D%7B81%7D%5Csqrt%5B3%5D%7B3%7D%2B3%5Csqrt%5B3%5D%7B9%7D%5Csqrt%5B3%5D%7B9%7D-%28%5Csqrt%5B3%5D%7B3%7D%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3D%28%5Csqrt%5B3%5D%7B9%7D%29%5E3-3%5Csqrt%5B3%5D%7B81%7D%5Csqrt%5B3%5D%7B3%7D%2B3%5Csqrt%5B3%5D%7B9%7D%5Csqrt%5B3%5D%7B9%7D-%28%5Csqrt%5B3%5D%7B3%7D%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3D%28%5Csqrt%5B3%5D%7B9%7D%29%5E3-3%5Csqrt%5B3%5D%7B81%7D%5Csqrt%5B3%5D%7B3%7D%2B3%5Csqrt%5B3%5D%7B9%7D%5Csqrt%5B3%5D%7B9%7D-%28%5Csqrt%5B3%5D%7B3%7D%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3=(&#92;sqrt[3]{9})^3-3&#92;sqrt[3]{81}&#92;sqrt[3]{3}+3&#92;sqrt[3]{9}&#92;sqrt[3]{9}-(&#92;sqrt[3]{3})^3" class="latex" /></p>
<p>Y que reduciendo nos origina</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3D6-9%5Csqrt%5B3%5D%7B9%7D%2B9%5Csqrt%5B3%5D%7B3%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3D6-9%5Csqrt%5B3%5D%7B9%7D%2B9%5Csqrt%5B3%5D%7B3%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%3D6-9%5Csqrt%5B3%5D%7B9%7D%2B9%5Csqrt%5B3%5D%7B3%7D&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3=6-9&#92;sqrt[3]{9}+9&#92;sqrt[3]{3}" class="latex" /></p>
<p>Luego, en <span style="color:#ff0000;">*</span> hacemos el cambio de <img src="https://s0.wp.com/latex.php?latex=x&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=x&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=x&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="x" class="latex" /> y de <img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3" class="latex" />, así</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%2B9x-5%3D6-9%5Csqrt%5B3%5D%7B9%7D%2B9%5Csqrt%5B3%5D%7B3%7D%2B9%281-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D%29-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%2B9x-5%3D6-9%5Csqrt%5B3%5D%7B9%7D%2B9%5Csqrt%5B3%5D%7B3%7D%2B9%281-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D%29-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%2B9x-5%3D6-9%5Csqrt%5B3%5D%7B9%7D%2B9%5Csqrt%5B3%5D%7B3%7D%2B9%281-%5Csqrt%5B3%5D%7B3%7D%2B%5Csqrt%5B3%5D%7B9%7D%29-5&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3+9x-5=6-9&#92;sqrt[3]{9}+9&#92;sqrt[3]{3}+9(1-&#92;sqrt[3]{3}+&#92;sqrt[3]{9})-5" class="latex" /></p>
<p>Efectuando cuidadosamente se obtiene</p>
<p><img src="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%2B9x-5%3D10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%2B9x-5%3D10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=%28x-1%29%5E3%2B9x-5%3D10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="(x-1)^3+9x-5=10" class="latex" /></p>
<p>Finalmente, concluimos que</p>
<p><img src="https://s0.wp.com/latex.php?latex=R%3Dx%5E3-3x%5E2%2B12x-6%3D10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=R%3Dx%5E3-3x%5E2%2B12x-6%3D10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=R%3Dx%5E3-3x%5E2%2B12x-6%3D10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="R=x^3-3x^2+12x-6=10" class="latex" /></p>
<p>Rpta. <img src="https://s0.wp.com/latex.php?latex=10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002" srcset="https://s0.wp.com/latex.php?latex=10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002 1x, https://s0.wp.com/latex.php?latex=10&#038;bg=ffffff&#038;fg=333333&#038;s=0&#038;c=20201002&#038;zoom=4.5 4x" alt="10" class="latex" /></p>
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