College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 5 - Section 5.5 - The Real Zeros of a Polynomial Function - 5.5 Assess Your Understanding - Page 387: 19


$R=0$ $x-\dfrac {1}{2}$ is a factor.

Work Step by Step

$f\left( x\right) =2x^{4}-x^{3}+2x-1=\left( x-\dfrac {1}{2}\right) q\left( x\right) +R$ $\Rightarrow f\left( \dfrac {1}{2}\right) =0=R$ Since $R=0$, $x-\dfrac {1}{2}$ is a factor.
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