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OpenStudy (anonymous):
Simplify: (3a + 5b)2 A. 9a2 + 25b2 B. 9a2 + 30ab + 25b2 C. 9a2 + 10ab + 25b2 D. 9a2 + 25ab + 10b2
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OpenStudy (phi):
do you know how to multiply (3a+5b)(3a+5b) (using FOIL for example)?
OpenStudy (phi):
Here is a short video that might help http://www.khanacademy.org/math/algebra/polynomials/v/multiplying-polynomials1
OpenStudy (anonymous):
@phi i know how to foil i just need the answer, i'm trying to finish something quickly.
OpenStudy (phi):
then do FOIL quickly and don't make any mistakes.
OpenStudy (anonymous):
k
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