Answer
$7s^{\frac{3}{2}}$
Work Step by Step
We are given:
$\sqrt 9s^3 + \sqrt 16s^3$
$=\sqrt 3^2s^3 + \sqrt 4^2s^3$
$=3\sqrt s^3 + 4\sqrt s^3$
$=7\sqrt s^3$
$=7s^{\frac{3}{2}}$
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 7 - Exponents and Exponential Functions - 7-5 Rational Exponents and Radicals - Practice and Problem-Solving Exercises - Page 452: 57
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