SOLUTION: factor the polynomials by grouping. 9m^3+18m^2-4m-8

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Question 175733: factor the polynomials by grouping.
9m^3+18m^2-4m-8
Found 2 solutions by stanbon, Mathtut:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!

factor the polynomials by grouping.
9m^3+18m^2-4m-8
----------------------
9m^2(m+2) - 4(m+2)
= (m+2)(9m^2-4)
= (m+2)((3m-2)(3m+2)
======================
Cheers,
Stan H.

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
9m%5E3%2B18m%5E2-4m-8given
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9m%5E2%28m%2B2%29-4m-8factored out gcf from 1st two terms
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9m%5E2%28m%2B2%29-2%28m%2B2%29factored out a -2 from last two terms
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highlight%28%289m%5E2-2%29%28m%2B2%29%29factored out (m+2) term
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