Answer
$22$
Work Step by Step
Square both sides of the equation then simplify :
$\sqrt{x+3}=5\\
\left(\sqrt{x+3}\right)^{2} = 5^{2}\\
x+3 = 25\\$
Subtract $3$ from each side:
$x+3-3=25-3\\
x=22$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 6 - Radical Functions and Rational Exponents - 6-5 Solving Square Root and Other Radical Equations - Practice and Problem-Solving Exercises - Page 395: 11
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