A-APR.4

Prove polynomial identities and use them to describe numerical relationships. For example, the polynomial identity (x^2 + y^2)^2 = (x^2 – y^2)^2 + (2xy)^2 can be used to generate Pythagorean triples.

Example Problems
Factor completely using the difference of squares method:
Factor completely using the difference of squares method:
Factor completely using the difference of squares method:
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