Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Review Exercises - Page 399: 12

Answer

$15x^3-10x^2+11x-8$

Work Step by Step

Given:$(7x^3-6x^2+5x-11)-(-8x^3+4x^2-6x-3)$ This implies $(7x^3-6x^2+5x-11)-(-8x^3+4x^2-6x-3)=7x^3-6x^2+5x-11+8x^3-4x^2+6x+3$ and $=7x^3+8x^3-6x^2-4x^2+5x+6x-11+3$ Hence, the result is : $=15x^3-10x^2+11x-8$
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