Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 4 - Polynomial and Rational Functions - Chapter Review - Chapter Test - Page 245: 11

Answer

$(-\infty,3)U(8,\infty)$

Work Step by Step

Step 1. Rewrite the inequality as $\frac{x+2}{x-3}-2\lt0 \longrightarrow \frac{-x+8}{x-3}\lt0$ Step 2. Identify the boundary points as $x=3,8$ and the intervals $(-\infty,3),(3,8),(8,\infty)$ Step 3. Choose test values $x=0,4,9$ in each interval and test the inequality to get $True,\ False,\ True$ Step 4. Thus we get the solution interval(s) $(-\infty,3)U(8,\infty)$
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