SOLUTION: please factor completely and explain! im so confused! the question says factor completely --> 3x^3+39x^2+120x help!

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Question 249359: please factor completely and explain! im so confused! the question says factor completely --> 3x^3+39x^2+120x help!
Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
common factors first ___ 3x (x^2 + 13x + 40)

factoring the quadratic ___ 3x (x + 8) (x + 5)

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