High School Algebra
Domain Arithmetic with Polynomials and Rational Expressions
Cluster Use polynomial identities to solve problems.
Standard Prove polynomial identities and use them to describe numerical relationships. <span class='clarification'>For example, the polynomial identity $(x^2 + y^2)^2 = (x^2 - y^2)^2 + (2xy)^2$ can be used to generate Pythagorean triples.</span>

A-APR.C.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.