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 - 4.4 Addition and Subtraction of Polynomials - 4.4 Exercise Set: 26

Answer

$4.9a^3+5.3a^2-8.8a+4.6$

Work Step by Step

Add the polynomials then combine like terms to obtain: $=4.9a^3+3.2a^2-5.1a+2.1a^2-3.7a+4.6 \\=4.9a^3+(3.2a^2+2.1a^2)+(-5.1a-3.7a)+4.6 \\=4.9a^3+5.3a^2+(-8.8a)+4.6 \\=4.9a^3+5.3a^2-8.8a+4.6$
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