# Chapter R - Section R.4 - Factoring Polynomials - R.4 Exercises: 49

(a) B (b) C (c) A (d) D

#### Work Step by Step

(a) and (b) follow the pattern for $(a + b)^{2}$ = $a^{2}$ + 2ab + $b^{2}$. (c) and (d) follow the pattern for (a + b)(a - b) = $a^{2}$ - $b^{2}$ We can then check the factorizations with FOIL.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.