Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 1 - Section 1.8 - Inequalities - 1.8 Exercises - Page 89: 52


(-1,2) $\cup$ (5,$\infty$)

Work Step by Step

(x-5)(x-2)(x+1) $\gt$ 0 Factors are zero when x=-1, x=2 or x=5, these divide the number line into 4 intervals, endpoints don't satisfy the inequality , plug in values from intervals to decide which of them satisfy the inequality.
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