SOLUTION: I need help factoring this binomial completely. Here is the problem: x^2y^2-256.

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Question 243325: I need help factoring this binomial completely.
Here is the problem: x^2y^2-256.
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Notice that:
x%5E2y%5E2-256
.
can be written as:
%28xy%29%5E2+-+16%5E2
.
This is a "difference of squares", a special case in factoring:
%28xy+-+16%29%28xy+%2B+16%29