Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 5 - Cumulative Review Exercises - Page 709: 3



Work Step by Step

Step 1. Factor the left side to get $(x+4)(x-2)\gt0$ and we can find the boundary points as $x=-4,2$ Step 2. Using the test points to examine the signs on each interval, we have $...(+)...(-4)...(-)...(2)...(+)...$ Step 3. We can find the solution as $(-\infty,-4)\cup(2,\infty)$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.