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 of these is a polynomial identity (true for all values of $x$ )?

$x^2 - 4 = 0$

$(x + 2)(x - 2) = x^2 - 4$

$x^2 = 4$

$x + 2 = 6$