SOLUTION: Solve by completing the square x^2+6x=12 Show work please, thanks

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Question 1014421: Solve by completing the square x^2+6x=12
Show work please, thanks

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by completing the square x^2+6x=12
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x^2 + 6x + 9 = 12+9
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(x+3)^2 = 21
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x+3 = sqrt(21) or x+3 = -sqrt(21)
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x = -3+sqrt(21) or x = -3-sqrt(21)
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Cheers,
Stan H.
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