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 386: 1



Work Step by Step

Substitute $-1$ to $x$ to obtain: \begin{align*} f(-1)&=2(-1)^2-(-1)\\ &=2(1)+1\\ &=2+1\\ &=3 \end{align*}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.