College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.3 - Page 375: 63


See below.

Work Step by Step

According to the factor theorem, if $x-1$ is a factor then $f(1)=0$. $f(1)=1^3-2\cdot1^2-11\cdot1+12=1-2-11+12=0$, thus it is a factor.
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