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OpenStudy (anonymous):
Multiply and simplify: (6z + 3)(6z - 3) 36z2 + 9 36z2 - 9 36z2 - 36z - 9 36z2 - 36z + 9
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OpenStudy (anonymous):
FOIL. \[(6z + 3)(6z - 3) \implies 6z(6z - 3) + (3(6z - 3) \implies ?\]
OpenStudy (anonymous):
36z2 + 9?
OpenStudy (anonymous):
Close. It would be \(36z^2 - 9\)
OpenStudy (anonymous):
ur great thanks
OpenStudy (anonymous):
Gald to help :)
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