Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

APPENDIX A - Numbers, Inequalities, and Absolute Values - A Exercises - Page A9: 9


$x+1 $ or $-x-1$

Work Step by Step

Start with given expression: $|x+1|$ Since $x+1$ could be positive or negative, the absolute value is both the positive and negative version of it: $|x+1|=x+1 $ or $|x+1|=-(x+1)=-x-1$
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