SOLUTION: I am stuck on this one...I need to make sure my answer is correct. 25x^2-81y^2

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Question 44764: I am stuck on this one...I need to make sure my answer is correct.
25x^2-81y^2
Answer by OHtutor(16) About Me  (Show Source):
You can put this solution on YOUR website!
(5x-9y)(5x+9y)