Answer
$\{-1,-1,-1,-1 \}$
Work Step by Step
Step 1. One can try $x=\pm 1$ with synthetic division, but this polynomial is actually $f(x)=(x+1)^4$
Step 2. Thus the zeros are $\{-1,-1,-1,-1 \}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 3 - Polynomial and Rational Functions - 3.3 Zeros of Polynomial Functions - 3.3 Exercises - Page 338: 108
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