You can put this solution on YOUR website! how do you complete the square of x^2+6x=-22?
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x^2 + 6x + 3^2 = -22 + 3^2
(x+3)^2 = -13
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x+3 = +/-isqrt(13
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x = -3+isqrt(13) or x = -3-isqrt(13)
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Cheers,
stan H.