Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 3 - Section 3.7 - Polynomial and Rational Inequalities - 3.7 Exercises - Page 317: 53

Answer

$(-\infty,a]\cup[b,c]\cup[d,\infty)$

Work Step by Step

1. The cut points can be identified as $a,b,c,d$, 2. Build a table as shown in the figure and identify the signs in each region. 3. Based on the end results from the table, the solutions for the inequality can be found as $(-\infty,a]\cup[b,c]\cup[d,\infty)$
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