SOLUTION: Factoring trouble 16m^3 + 28m^2 + 12m + 21

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Question 1017421: Factoring trouble
16m^3 + 28m^2 + 12m + 21

Answer by fractalier(6550)   (Show Source): You can put this solution on YOUR website!
Once more, by grouping we get
16m^3 + 28m^2 + 12m + 21
4m^2(4m + 7) + 3(4m + 7) =
(4m^2 + 3)(4m + 7)

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