Answer
$x = ±\frac{5}{2}$
Work Step by Step
$4x^{2} - 25 = 0$
$4x^{2} = 25$
$x^{2} = \frac{25}{4}$
$x = ±\frac{\sqrt {25}}{\sqrt {4}}$
$x = ±\frac{5}{2}$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Appendix A - A.4 - Quadratic Equations - Exercises - Page 561: 29
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