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OpenStudy (anonymous):
x2 + 8x + 9 = -7
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OpenStudy (tiffanymak1996):
is it x^2 or 2timesx ?
OpenStudy (anonymous):
is it x to the second power?
OpenStudy (anonymous):
x^2
OpenStudy (tiffanymak1996):
transfer -7 to the left side, therfore x^2 +8x+16=0, factor it, you have (x+4)^2 =0 x=-4
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