College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Section 1.7 - Solving Inequalities - 1.7 Exercises - Page 148: 48



Work Step by Step

$(x-5)(x-2)(x+1)\gt0$ These are zero when x=5, 2 and x=-1. These numbers divide the real line into the intervals: $(-\infty,-1)(-1,2)(2,5)(5,+\infty) $ The diagram is as follows:
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