Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 8 - Section 8.1 - The Square Root Property and Completing the Square - Exercise Set - Page 592: 4


$x=\pm \sqrt {5}$ or, $x=+\sqrt {5},-\sqrt {5}$

Work Step by Step

Given: $8x^2=40$ This can be written as: $x^2=\dfrac{40}{8}$ or, $x^2=5$ Apply The Square Root Property. $x=\sqrt{5}$ Hence, $x=\pm \sqrt {5}$ or, $x=+\sqrt {5},-\sqrt {5}$
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.