College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Section 1.6 - Equations and Inequalities Involving Absolute Value - 1.6 Assess Your Understanding - Page 133: 39

Answer

$(-\infty,-4)\cup(4,\infty)$

Work Step by Step

$|3x|\gt12$, so $|x|\gt4$, so $x\gt4$ or $x\lt-4$, thus the solution set is $(-\infty,-4)\cup(4,\infty)$
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