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<i><font face="times new roman,times,serif" size="4"> Dada la siguiente ecuación cuadrática<br /><br />#ECUA<br /><br />#PREG<br /></font></i><br /><br /><br /><br />
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<i><font face="times new roman,times,serif" size="4">Solución:<br /><br /><font size="4">Pri<font size="4">mero debem<font size="4">os recordar que la s<font size="4">olución de la e<font size="4">cuación cuadráti<font size="4">ca <br /><br /></font></font></font></font></font></font></font></i> <div align="center"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»b«/mi»«mi»x«/mi»«mo»+«/mo»«mi»c«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><i><font face="times new roman,times,serif" size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4">viene dada por<br /><br /></font></font></font></font></font></font></font></i> <div align="center"><i><font face="times new roman,times,serif" size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«mfrac»«mrow»«mo»-«/mo»«mi»b«/mi»«mo»+«/mo»«msqrt»«mrow»«msup»«mi»b«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»4«/mn»«mi»a«/mi»«mi»c«/mi»«/mrow»«/msqrt»«/mrow»«mrow»«mn»2«/mn»«mi»a«/mi»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«mfrac»«mrow»«mo»-«/mo»«mi»b«/mi»«mo»-«/mo»«msqrt»«mrow»«msup»«mi»b«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»4«/mn»«mi»a«/mi»«mi»c«/mi»«/mrow»«/msqrt»«/mrow»«mrow»«mn»2«/mn»«mi»a«/mi»«/mrow»«/mfrac»«/mtd»«/mtr»«/mtable»«/math»</span></font></font></font></font></font></font></font></i><br /></div><i><font face="times new roman,times,serif" size="4"><font size="4">con <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»§#8800;«/mo»«mn»0«/mn»«/math»</span><font size="4"> </font></font></font></i>. <br /><font face="times new roman,times,serif"><i><font size="4">Ahora, en este caso, la ecuación es<br /></font></i></font><br /> <div align="center">#ECUA<br /></div><br /><font size="4"><i><font face="times new roman,times,serif">Para resolverla, primero debemos dejar la ecuación equivalente a cero. Así, tenemos </font></i></font><br /><br /> <div align="center">#ECUA1<br /><br /> <div align="left"><i><font face="times new roman,times,serif"><font size="4">En la ecuación, identificamos cuánto valen los parámetros de la ecuación cuadrática</font><br /><br /> </font></i> <div align="center"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»#a1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»#b1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»#c1«/mi»«/mtd»«/mtr»«/mtable»«/math»</span><br /></div><br /><i><font face="times new roman,times,serif" size="4">Los reemplazamos en la solución de la ecuación<font size="4"> y</font> obtenemos</font><font size="4"><br /></font></i><br /> <div align="center"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable columnalign=¨left¨ rowspacing=¨0¨»«mtr»«mtd»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«mi»#solu1«/mi»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«mi»#solu2«/mi»«/mtd»«/mtr»«/mtable»«/math»</span><br /></div><font face="times new roman,times,serif" size="4"><i>Resolviendo<font size="4">, tenemos q<font size="4">ue<br /><br /></font></font></i></font> <div align="center"><span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mi»#solu3«/mi»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mi»#solu5«/mi»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mi»#solu7«/mi»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mi»#solu4«/mi»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mi»#solu6«/mi»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mi»#solu8«/mi»«/mtd»«/mtr»«/mtable»«/math»</span><br /></div><font face="times new roman,times,serif" size="4"><i><font size="4"><font size="4"><br /></font></font>Como en este caso pedían la #PREG2, entonces la respuesta al ejercicio es:</i></font><br /> <div align="center">#sol<br /></div></div></div>
No, case is unimportant
Yes, case must match
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