Answer
(m+3)(m-3)(n+8)
Work Step by Step
$m^{2}$(n+8)-9(n+8)=($m^{2}$-9)(n+8)=($m^{2}$-$3^{2}$)(n+8)=
(m+3)(m-3)(n+8)
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.5 - Factoring by Special Products - Exercise Set - Page 448: 92
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