Answer
There are two solutions for the equation, $\pm 3$.
Work Step by Step
$2x^2-18=0$
$2x^2=18$
$x^2=9$
$x=\pm 3$
There are two solutions for the equation, $\pm 3$.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 564: 19
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