Answer
$\pm \sqrt 9$
Work Step by Step
$\frac{1}{3}x^2-3=0$
$\frac{1}{3}x^2=3$
$x^2=9$
$x= \pm \sqrt 9$
Hence, there are two solutions, $x= \pm \sqrt 9$.
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: 13
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