SOLUTION: How is this question done? x8 -1296y4

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Question 725420: How is this question done?
x8 -1296y4
Answer by KMST(5328)   (Show Source): You can put this solution on YOUR website!
To start, can be factored as a difference of squares.
and
You must have been told that
where a and b can be any expression, so


cannot be factored using just real numbers,
but is a difference of squares, so


For an answer, you should just write:
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