Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Section 7.4 - Adding and Subtracting Rational Expressions with Different Denominators - Exercise Set: 71

Answer

$x = - 0.5 $ OR $x=1$

Work Step by Step

$2x^2 - x - 1 = 0$ $2x^2 - 2x + x - 1 = 0$ $2x ( x-1) + 1 (x-1) = 0$ $(2x+1)(x-1) = 0$ $2x+1 =0 $ OR $x - 1 = 0$ $2x = -1$ OR $x=1$ $x = - 0.5 $ OR $x=1$
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.