A.APR.C.4: Prove polynomial identities and use them to describe numerical relationships.

Prove polynomial identities and use them to describe numerical relationships.

Example Problems

Is the following equation a true identity?

(x + y)^2 - (x - y)^2 = 0

Is the following equation a true identity?

(a + b)(a - b) = a^2 - b^2

Is the following equation a true identity?

(a + b)^2 = a^2 + 2ab + b^2

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