SOLUTION: Factor A^2b^2-9

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Question 338313: Factor
A^2b^2-9
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Notice, I can rewrite:
A^2b^2-9
.
As:
(Ab)^2- (3)^2
This is a "difference of squares" which we can factor as:
(Ab - 3)(Ab + 3)