Answer
$a^3+b^3$
Work Step by Step
$(a+b)(a^2-ab+b^2)=\\=a(a^2-ab+b^2)+b(a^2-ab+b^2)\\=(a^3-a^2b+ab^2)+(ba^2-ab^2+b^3)\\=a^3+b^3$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Section 5.2 - Multiplication of Polynomials - Exercise Set - Page 337: 28
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