document.write( "Question 1014421: Solve by completing the square x^2+6x=12\r
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Algebra.Com's Answer #630714 by stanbon(75887)\"\" \"About 
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Solve by completing the square x^2+6x=12
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\n" ); document.write( "x^2 + 6x + 9 = 12+9
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\n" ); document.write( "(x+3)^2 = 21
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\n" ); document.write( "x+3 = sqrt(21) or x+3 = -sqrt(21)
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\n" ); document.write( "x = -3+sqrt(21) or x = -3-sqrt(21)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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