Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - Review Exercises - Page 153: 57


Solutions: $x=-\frac{5}{4}+\frac{\sqrt {241}}{4}$ $x=-\frac{5}{4}-\frac{\sqrt {241}}{4}$

Work Step by Step

$-2x^2-5x+27=0~~$ ($a=-2,b=-5,c=27$): $x=\frac{-b±\sqrt {b^2-4ac}}{2a}=\frac{-(-5)±\sqrt {(-5)^2-4(-2)(27)}}{2(-2)}=\frac{5±\sqrt {241}}{-4}=-\frac{5}{4}±\frac{\sqrt {241}}{4}$
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