SOLUTION: factor trinimial completely 4a^3+28a^2+40a

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Question 743057: factor trinimial completely
4a^3+28a^2+40a
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

4a%5E3%2B28a%5E2%2B40a
4a%28a%5E2%2B7a%2B10%29....write 7a as 2a%2B5a
4a%28a%5E2%2B2a%2B5a%2B10%29....group
4a%28%28a%5E2%2B2a%29%2B%285a%2B10%29%29
4a%28a%28a%2B2%29%2B5%28a%2B2%29%29
4a%28a%2B5%29%28a%2B2%29