Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix D - Exercise Set: 47


$x∈(-\infty;-3]∪[3;\infty)$ To graph the solution set, put two square brackets facing outwards at the points -3 and 3 ; the solution set is the space to the left of -3 and to the right of 3.

Work Step by Step

The absolute value of x is larger than 3, so the value of x is either larger than 3 or smaller than -3. The soltuion set is any number whose distance to 0 is larger than 3.
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