Answer
$6a^5-a^3-12a^2$
Work Step by Step
Add the polynomials then combine like terms to obtain:
$=5a^5-2a^3-9a^2+2a^5+a^3+(-a^5)+(-3a^2)
\\=(5a^5+2a^5-a^5)+(-2a^3+a^3)+(-9a^2-3a^2)
\\=6a^5+(-a^3)+(-12a^2)
\\=6a^5-a^3-12a^2$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 4 - Polynomials - Review Exercises: Chapter 4 - Page 298: 42
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