Answer
x=$\sqrt 2$, -$\sqrt 2$, or -3
Work Step by Step
x$^3$+3x$^2$-2x-6=0
x$^2$(x+3)-2(x+3)=0
(x$^2$-2)(x+3)=0
x=$\sqrt 2$, -$\sqrt 2$, or -3
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 1 - Summary, Review, and Test - Review Exercises - Page 205: 101
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