Answer
$x=\pm\sqrt {20}$
Work Step by Step
$3x^2 = 60 $
$x^2=20$
$x=\pm\sqrt {20}$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.7 - Equations - Exercise Set - Page 106: 95
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