Answer
$(a - 3b - 3)^{2}$
Work Step by Step
Check factorization with FOIL and perfect squares rule:
$(a - 3b - 3)^{2}$ = $((a - 3b) - 3)^{2}$ = $(a - 3b)^{2}$ + 2(a - 3b)(-3) + $(-3)^{2}$ = $(a - 3b)^{2}$ - 6(a - 3b) + 9
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: 47
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