College Algebra 7th Edition

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

Chapter 1, Equations and Graphs - Section 1.4 - Solving Quadratic Equations - 1.4 Exercises: 9

Answer

$x=-\displaystyle \frac{1}{5}$ or $x=2$

Work Step by Step

We solve by factoring: $5x^{2}-9x-2=0$ $(5x+1)(x-2)=0$ $5x+1=0$ or $x-2=0$ So we have: $x=-\displaystyle \frac{1}{5}$ or $x=2$
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