Exercises: Prove and Use Polynomial Identities

Work through each section in order. For proof problems, show all algebraic steps clearly.

Grade 9·22 problems·~38 min·Common Core Math - HS Algebra·standard·hsa-apr-c-4

Work through problems with immediate feedback

Recall / Warm-Up

Which expression correctly states the difference of squares identity?

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

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

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

$a^2 - b^2 = a^2 - 2ab + b^2$