document.write( "Question 641788: 4x^2+12x-7=0??
\n" ); document.write( "solve each equation by completing the square thanks for your help!!! \n" ); document.write( "

Algebra.Com's Answer #403804 by Alan3354(69443) $\"\"$ $\"About$

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4x^2+12x-7=0
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\n" ); document.write( "Divide by a, the coeffient of x^2
\n" ); document.write( " $\"x%5E2+%2B+3x+=+7%2F4\"$
\n" ); document.write( "c = (b/2)^2 = (3/2)^2 = 9/4
\n" ); document.write( "Add c to both sides
\n" ); document.write( " $\"x%5E2+%2B+3x+%2B+9%2F4+=+16%2F4\"$
\n" ); document.write( " $\"%28x+%2B+3%2F2%29%5E2+=+4\"$
\n" ); document.write( "x + 3/2 = ą 2
\n" ); document.write( "x = -3/2 ą 2
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