Answer
$13$
Work Step by Step
Evaluate the exponents:
$\sqrt {25 + 144}$
Simplify the radicand:
$=\sqrt {169}\\
=\sqrt{13^2}$
Take the square root of the perfect square to remove it from under the radical sign:
$=13$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 4 - Quadratic Functions and Equations - 4-7 The Quadratic Formula - Practice and Problem-Solving Exercises - Page 247: 90
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