Answer
$a^{4}-a^{3}-6a^{2}+7a+14$
Work Step by Step
$(a+2)(a^{3}-3a^{2}+7)=a(a^{3}-3a^{2}+7)+2(a^{3}-3a^{2}+7)=(a)(a^{3})+(a)(-3a^{2})+(a)(7)+(2)(a^{3})+(2)(-3a^{2})+(2)(7)=a^{4}-3a^{3}+7a+2a^{3}-6a^{2}+14=a^{4}-a^{3}-6a^{2}+7a+14$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.5 - Multiplying Polynomials - Exercise Set - Page 379: 48
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