Answer
$x^5+8x^4+6x^3-2x-9$
Work Step by Step
Add the polynomials then combine like terms to obtain:
$=8x^4-x^3+x-4+x^5+7x^3-3x-5
\\=x^5+8x^4+(-x^3+7x^3)+(x-3x)+(-4-5)
\\=x^5+8x^4+6x^3+(-2x)+(-9)
\\=x^5+8x^4+6x^3-2x-9$
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: 41
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