Answer
$(\sqrt {x+9})^2 = x+9 $
Work Step by Step
By the formula on page 13,
$(\sqrt {x+9})^2 = ((x+9)^{0.5})^2 = (x+9)^{0.5\times2} = (x+9)^{1} = x+9 $.
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 0 - Section 0.2 - Exponents and Radicals - Exercises - Page 16: 60
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