Answer
(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.
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.4 - Factoring Polynomials - R.4 Exercises - Page 38: 49
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