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 <question type="category"><category><text>1rBTX 02. POLINOMIS/1.2.1 Operar polinomis</text></category></question>
 
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      <text>1.2.1.50DT OPERACIONS COMBINADES</text>
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<td style="width: 412px; background-color: #003300;" valign="top"><span style="font-size: x-large; color: #ffff99;">Operacions combinades</span></td>
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<p><strong><span style="font-size: small; color: #003300;">Quan cal efectuar operacions combinades, cal tenir present <br /></span></strong></p>
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<li><strong><span style="font-size: small; color: #003300;">l'ordre de les operacions és: Parèntesis (o claus, o claudàtors), Potències, Multiplicacions i divisions, Addicions i Subtraccions</span></strong></li>
<li><strong><span style="font-size: small; color: #003300;">l'ús de les identitats notables; (a+b)<sup>2</sup> = a<sup>2</sup> + 2ab + b<sup>2</sup> i (a+b)(a-b)=a<sup>2 </sup>- b<sup>2</sup></span></strong></li>
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