Answer
$4x^3+9x^2-13x-3$
Work Step by Step
$(-9x^3+7x^2-5x+3)+(13x^3+2x^2-8x-6)\\=(13x^3-9x^3)+(7x^2+2x^2)+(-5x-8x)+(3-6)\\=4x^3+9x^2-13x-3$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 4 - Section 4.5 - Linear Programming - Exercise Set - Page 305: 38
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