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OpenStudy (bananas1234):
Solve (b + 12)^2 = 81.
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rvc (rvc):
take square root on both sides
OpenStudy (bananas1234):
ok so the square root of (b +12) and the square root of 81?
rvc (rvc):
the square root of 81 is 9
OpenStudy (anonymous):
so b+12=9 b=9-12=-3 b=-3
rvc (rvc):
yep!
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