SOLUTION: i cannot figure out this question at all : 4a^4 b - 9a^2 b^3

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Question 154952: i cannot figure out this question at all : 4a^4 b - 9a^2 b^3
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
It is a factoring problem.
4a^4 b - 9a^2 b^3
=a^2b(4a^2-9b^2)
=a^2b(2a-3b)(2a+3b)
.
Ed