Answer
$\{x| x \lt -\frac{1}{2}\}$
see graph.
Work Step by Step
$(4x+2)^{-1}\lt0$
$\frac{1}{4x+2}\lt0$
$4x+2\lt0$
thus $\{x| x \lt -\frac{1}{2}\}$
see graph.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.10 Internal Notation; Solving Inequalities - A.10 Assess Your Understanding - Page A87: 83
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