SOLUTION: I need help completely factoring 20x^3+60x^2+45x thank u!

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Question 76366: I need help completely factoring 20x^3+60x^2+45x thank u!
Answer by galactus(183) About Me  (Show Source):
You can put this solution on YOUR website!
First, factor out a common factor of the coefficients:
5x%284x%5E2%2B12x%2B9%29
Working on the inside of the parentheses, what two numbers when added equal 12 and when multiplied equal 36(because 4*9=36). 6 and 6
5x%284x%5E2%2B6x%2B6x%2B9%29
5x%28%282x%282x%2B3%29%2B3%282x%2B3%29%29%29
5x%282x%2B3%29%282x%2B3%29
5x%282x%2B3%29%5E2