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OpenStudy (anonymous):
x^2 + 7 = 9 x^2 = 2 I need help with the next step..
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OpenStudy (zzr0ck3r):
take the square root of both sides
OpenStudy (anonymous):
take the square root of both sides
OpenStudy (zzr0ck3r):
x = +- sqrt(2) so x = sqrt(2) or x = -sqrt(2)
OpenStudy (anonymous):
Thank you, both! :)
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