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 <question type="category"><category><text>1rBTX 02. POLINOMIS/1.2.0 Repàs de polinomis</text></category></question>
 
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      <text>1.2.0.60DT SIGNEPOL G2 FACTORS</text>
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      <text><![CDATA[<div style="text-align: center;"><br /><br />
<table style="color: #000066; border: 4px solid #003300; float: none; text-align: left; vertical-align: top; width: 400px; background-image: url('http://lcmates.eu/none'); background-color: #ffffcc;" border="4" frame="void" rules="none" cellspacing="1" cellpadding="1" align="center">
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<td style="background-image: url('http://lcmates.eu/none'); border-color: #003300; border-width: 2px; text-align: center; vertical-align: top; border-style: solid; background-color: #003300; color: #ffcc00; width: 450px;" rowspan="1" colspan="6" align="center" valign="top"><span style="font-size: large; color: #ffff99;" data-mce-mark="1">Signe de «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨20px¨»«msup mathcolor=¨#FFFFC3¨»«mi mathcolor=¨#FFFFC3¨»ax«/mi»«mn»2«/mn»«/msup»«mo mathcolor=¨#FFFFC3¨»+«/mo»«mi mathcolor=¨#FFFFC3¨»bx«/mi»«mo mathcolor=¨#FFFFC3¨»+«/mo»«mi mathvariant=¨normal¨ mathcolor=¨#FFFFC3¨»c«/mi»«/mstyle»«/math» <br /></span></td>
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<p><span style="font-size: small; color: #003300;"><strong>Si no té solucions, té el signe de a.</strong></span></p>
<p><span style="font-size: small; color: #003300;"><strong>Si té solució doble x<sub>1</sub>, té el signe de a excepte en x1</strong></span></p>
<p><span style="font-size: small;"><strong><span style="color: #003300;">Si té dues solucions, x<sub>1</sub>&lt; x<sub>2</sub>:</span> </strong></span></p>
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<td style="border: 1px solid #000066;" align="center"><span style="font-size: small;">x</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: left; vertical-align: top; border-style: solid;" valign="top" width="NaNpx"><span style="font-size: small;">-∞</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid; background-color: #ff0000; color: #ffffff;" valign="top" width="NaNpx"><span style="font-size: small;"><strong>x<sub>1</sub></strong></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: right; vertical-align: top; border-style: solid;" align="right" valign="top" width="NaNpx"><span style="font-size: small;"> </span></td>
<td style="background-color: #ff0000; background-image: none; color: #ffffff; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;"><strong>x<sub>2</sub></strong></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: right; vertical-align: top; border-style: solid;"><span style="font-size: small;">+∞</span></td>
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<td style="border: 1px solid #000066;" align="center"><span style="font-size: small;">a</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">Signe de a</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid; background-color: #ff0000; color: #ffffff;" align="center" valign="top" width="NaNpx"><span style="font-size: small;"><strong>0</strong></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">Signe de a</span></td>
<td style="background-color: #ff0000; background-image: none; color: #ffffff; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;"><strong>0</strong></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;">Signe de a</span></td>
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<td style="border: 1px solid #000066;" align="center"><span style="font-size: small;">x-x<sub>1</sub></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">—</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid; background-color: #ff0000; color: #ffffff;" align="center" valign="top" width="NaNpx"><span style="font-size: small;"><strong> 0</strong></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">+</span></td>
<td style="background-color: #ff0000; background-image: none; color: #ffffff; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;"> </span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;">+</span></td>
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<td style="border: 1px solid #000066;" align="center"><span style="font-size: small;">x-x<sub>2</sub></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">—</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid; background-color: #ff0000; color: #ffffff;" align="center" valign="top" width="NaNpx"><span style="font-size: small;"> </span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">—</span></td>
<td style="background-color: #ff0000; background-image: none; color: #ffffff; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;"><strong> 0</strong></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;">+</span></td>
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<td style="border: 1px solid #000066;" align="center"><span style="font-size: small;"><span data-mce-mark="1">ax</span><sup>2</sup><span data-mce-mark="1">+bx+c</span></span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">Signe de a</span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid; background-color: #ff0000; color: #ffffff;" align="center" valign="top" width="NaNpx"><span style="font-size: small;"> </span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;" align="center" valign="top" width="NaNpx"><span style="font-size: small;">Contrari de a</span></td>
<td style="background-color: #ff0000; background-image: none; color: #ffffff; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;"> </span></td>
<td style="background-image: none; border-color: #000066; border-width: 2px; text-align: center; vertical-align: top; border-style: solid;"><span style="font-size: small;">Signe de a</span></td>
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