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Test-Lidia
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<p> </p> <div align="center"> <table style="background-color: #ffffcc; background-image: url('http://www.insmilaifontanals.cat/none'); color: #ffcc00; border: 4px solid #003300; float: none; text-align: center; vertical-align: top; width: 400px;" border="4" frame="void" rules="none"> <tbody> <tr> <td style="width: 400px; background-color: #003300;" valign="top"> <p><span style="font-size: large; color: #ffff99;" data-mce-mark="1">Factoritzar polinomi </span></p> <p><span style="font-size: large; color: #ffff99;" data-mce-mark="1">amb identitat remarcable</span></p> </td> </tr> <tr> <td style="background-color: #ffffcc; background-image: none; color: #000066; text-align: justify; vertical-align: top; border-style: none;" valign="top" width="NaNpx"> <p><span style="color: #003300;"><strong><span style="font-size: small;">Abans de començar càlculs val la pena comprovar si el polinomi no es pot escriure com una identitat remarcable.</span></strong></span><br /><span style="color: #000000;"><span style="font-size: small;"><span style="font-size: small;"><em>Exemples: <span style="font-size: small;"><br /></span></em></span><span style="font-size: small;"><em><span style="font-size: small;">5x</span><sup><span style="font-size: small;">2</span></sup><span style="font-size: small;">+ 20x+ 20 = 5</span></em><em style="font-size: small;"> · </em><span style="font-size: small;">(</span><span style="font-size: small;"><em>x<sup>2</sup> + 4</em></span></span></span><span style="font-size: small;"><em><span style="font-size: small;">x + 4) = 5·(x+2)<sup>2</sup></span><span style="font-size: small;"><br /></span></em></span></span></p> <p><span style="font-size: small; color: #000000;"><em><span style="font-size: small;">-2x<sup>2</sup> + 50 = -2·(x<sup>2</sup> - 25) = -2(x+5)(x-5)</span></em></span></p> </td> </tr> </tbody> </table> </div> <p><br /><br /></p>
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Thursday, 23 August 2018, 11:08 AM
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