Answer
$x=2$ or $x=-1$.
Work Step by Step
By factorization, we have
$$x^2- x-2=(x+1)(x-2)=0.$$
Then we have
$$(x-2) =0, \quad \text{or} \quad (x+1)=0$$
that is $x=2$ or $x=-1$.
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 11 - Section 11.1 - Solving Quadratic Equations by Factoring - Exercise - Page 364: 5
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
