Answer
8x$^3$+10x$^2$-20x-4
Work Step by Step
$(-6x^3+7x^2-9x+3)+(14x^3+3x^2-11x-7)$
$(-6x^3+14x^3)+(7x^2+3x^2)+(-9x-11x)+(3-7)$
$(8x^3)+(10x^2)+(-20x)+(-4)$
$8x^3+10x^2-20x-4$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 5 - Review Exercises - Page 414: 4
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