Answer
$8x^3+10x^2-20x-4$
Work Step by Step
Start by breaking apart the parentheses. Then combine like terms to simplify.
$(-6x^3+7x^2-9x+3)+(14x^3+3x^2-11x-7)$
$-6x^3+7x^2-9x+3+14x^3+3x^2-11x-7$
$8x^3+10x^2-20x-4$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Summary, Review, and Test - Review Exercises - Page 91: 73
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