Answer
There are two solutions, $ \pm 2\sqrt 2 = \pm 2.8$
Work Step by Step
$\frac{1}{2}t^2-4=0$
$\frac{1}{2}t^2=4$
$t^2=8$
$t=\pm \sqrt 8$
$t=\pm 2\sqrt 2$
There are two solutions, $ \pm 2\sqrt 2 = \pm 2.8$
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 565: 46
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