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 316: 2

Answer

zeros, zeros, cut points, see figure for completed table. $(-\infty,-4)$, $[-2,1]$, $(3,\infty)$

Work Step by Step

1. Fill the first three blanks as: zeros, zeros, cut points, 2. The cut points are $-4,-2,1,3$, fill in the signs in the table provided as shown in the figure. 3. Using the end results from the table, fill in the rest of the blanks sanctifying the inequality as $(-\infty,-4),[-2,1],(3,\infty)$
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