Answer
$h = 4, -4$
Work Step by Step
$5h^2-80=0$
$5h^2-80+80=0+80$
$5h^2 = 80$
$5h^2/5 = 80/5$
$h^2 = 16$
$\sqrt {h^2} = \sqrt {16}$
$h = 4, -4$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 9 - Quadratic Functions and Equations - 9-4 Factoring to Solve Quadratic Equations - Mixed Review - Page 559: 54
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