Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 4 - Quadratic Functions and Equations - 4-4 Factoring Quadratic Expressions - Practice and Problem-Solving Exercises - Page 221: 27

Answer

$-(x-4)(x+5)$

Work Step by Step

We start by factoring out -1. We have $-x^2-x+20=-(x^2+x-20)$ The factor pairs of -20 are 1 and -20, -1 and 20 2 and -10, -2 and 10 4 and -5, -4 and 5 -4 and 5 add up to 1.
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.