Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Appendix A - Numbers, Inequalities, and Absolute Values - A Exercises: 27

Answer

$[-1,1/2]$

Work Step by Step

Simplify the expression on one side $2x^2+x-1\leq0$ Identify key numbers by equating to zero $x=-1$ $x=1/2$ Assign a test value $[-1,1/2]$
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