SOLUTION: Factor Completely
81x^2 - 36y^2
Algebra.Com
Question 474276: Factor Completely
81x^2 - 36y^2
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
because we can rewrite:
81x^2 - 36y^2
as
(9x)^2 - (6y)^2
It is a "difference of squares" (special factoring case):
(9x - 6y)(9x + 6y)
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