Answer
m$(m+9)^{2}$
Work Step by Step
$m^{3}$+18$m^{2}$+81m=m($m^{2}$+18m+81)=
m($m^{2}$+2*m*9)+$9^{2}$)=m($(m+9)^{2}$
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 447: 21
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