Answer
$a^3+8$
Work Step by Step
$(a+2)(a^2-2a+4)\rightarrow$ apply the distributive property
=$(a+2)(a^2)-(a+2)(2a)+(a+2)(4)\rightarrow$ apply the distributive property
=$a^3+2a^2-2a^2-4a+4a+8\rightarrow$ combine like terms
=$a^3+8$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Test - Page 729: 16
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