Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 10 - Radical Expressions and Equations - Common Core Cumulative Standards Review - Selected Response - Page 660: 23

Answer

-3 is incorrect while 4 is correct.

Work Step by Step

Even though -3 is technically correct, we assume the positive root when taking the square root of a number, i.e. the absolute value. 4 is correct because it is positive, meaning it is assumed to be the square root of the number.
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.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions
GradeSaver will pay $500 for your Textbook Answer contributions