Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - Review Exercises: Chapter 4: 42

Answer

$6a^5-a^3-12a^2$

Work Step by Step

Add the polynomials then combine like terms to obtain: $=5a^5-2a^3-9a^2+2a^5+a^3+(-a^5)+(-3a^2) \\=(5a^5+2a^5-a^5)+(-2a^3+a^3)+(-9a^2-3a^2) \\=6a^5+(-a^3)+(-12a^2) \\=6a^5-a^3-12a^2$
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