document.write( "Question 148962: I need some help with this problem. I have tried to work it and cannot seem to come up with the answer All the directions say is to complete the square to solve the following equations\r
\n" ); document.write( "\n" ); document.write( "x^2+6x=7 ( i know that you need to get every thing on 1 side but then what)
\n" ); document.write( "x^2+6x-7=0\r
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\n" ); document.write( "\n" ); document.write( "and with this problem the same directions but would you us the quadratic formula to solve? 2x^2-5x-3=0 Thanks Leann \n" ); document.write( "

Algebra.Com's Answer #854421 by MathTherapy(10839) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "I need some help with this problem.  I have tried to work it and cannot seem to come up with the answer All the directions say is to\r\n" );
document.write( "complete the square to solve the following equations\r\n" );
document.write( "\r\n" );
document.write( "x^2+6x=7  ( i know that you need to get every thing on 1 side but then what)\r\n" );
document.write( "x^2+6x-7=0\r\n" );
document.write( "and with this problem the same directions but would you us the quadratic formula to solve?   2x^2-5x-3=0  Thanks Leann\r\n" );
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document.write( "While one of the other 2 \"respondents\" solved by factoring the trinomial, this is NOT the required method. However, this method, if the \r\n" );
document.write( "trinomial is factorable, is oftentimes used by this author, as a way to determine the solutions/roots before COMPLETING the SQUARE.  \r\n" );
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document.write( "You started out with , and went on to SUBTRACT 7 from each side of the equation. But, when completing the square, the\r\n" );
document.write( "CONSTANT (the number without an attached variable) should be on the right side of the equation, which it is! So, NO NEED to subtract 7,\r\n" );
document.write( "in this case!\r\n" );
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document.write( "The answer to your question about whether or not the quadratic equation formula can be used, is YES!! But, why would you want to do\r\n" );
document.write( "that when requested to solve, by COMPLETING the SQUARE? And also, both equations are indeed, factorable.\r\n" );
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document.write( "  ---- Squaring  of b, then adding result to both sides\r\n" );
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document.write( "                     ---- Taking square root on both sides\r\n" );
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document.write( "Now, follow the same concept for the 2nd equation!

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