Algebra and Trigonometry 10th Edition

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

Chapter 2 - 2.3 - Analyzing Graphs of Functions - 2.3 Exercises - Page 194: 22


$x=0$ $x=\frac{3}{5}$ $x=-\frac{3}{5}$

Work Step by Step

$f(x)=0$ $-25x^4+9x^2=0$ $x^2(-25x^2+9)=0$ $x^2=0$ $x=0$ or $-25x^2+9=0$ $-25x^2=-9$ $x^2=\frac{9}{25}$ $x=±\frac{3}{5}$
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