Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 9 - Roots and Radicals - 9.5 - Solving Radical Equations - Concept Quiz 9.5: 5

Answer

True

Work Step by Step

Solving the equation by squaring each side of the equation and simplifying, we obtain: $\sqrt {x+1}=-2$ $(\sqrt {x+1})^{2}=(-2)^{2}$ $x+1=4$ $x=4-1$ $x=3$ As $\sqrt {3+1}\ne-2$, $3$ is not a solution to this equation. Therefore, the statement of the question is true.
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.