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(x2 + y2)(x + y)(x - y) = x4 - y4.

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Q: How can you do x4-y4?
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Related questions

How do you factor 1 minus x4y4?

(1 - x4y4) = (1 + x2y2)*(1 - x2y2) = (1 + x2y2)*(1 + xy)*(1 - xy)


What is the cubed root of x4y4?

You can divide each exponent by three; thus, you get: x4/3y4/3 This is equivalent to x (cubic root of x) y (cubic root of y).