document.write( "Question 170892: Can you please help show me how to solve this quadratic equation by completing the square.\r
\n" ); document.write( "\n" ); document.write( "x^2 + 4x - 12 = 0
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Algebra.Com's Answer #126168 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
solve this quadratic equation by completing the square.
\n" ); document.write( "x^2 + 4x - 12 = 0
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\n" ); document.write( "x^2 + 4x + ? = 12 + ?\r
\n" ); document.write( "\n" ); document.write( "x^2 + 4x + (4/2)^2 = 12 + (4/2)^2\r
\n" ); document.write( "\n" ); document.write( "x^2 + 4x + 4 = 12 + 4
\n" ); document.write( "(x+2)^2 = 16\r
\n" ); document.write( "\n" ); document.write( "x+2 = 4 or x+2 = -4
\n" ); document.write( "x = 2 or x = -6
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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