Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 1, Equations and Inequalities - 1.7 Solve Absolute Value Equations and Inequalities - 1.7 Exercises - Skill Practice - Page 56: 42

Answer

The error here is that there was no check for extraneous solutions.

Work Step by Step

The error here is that there was no check for extraneous solutions. After all, $n=-3$ is an extraneous solution.
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