Answer
$6\sqrt {7xz}$
Work Step by Step
In this problem, we just add the coefficients together and keep the radical as-is because the radicals are the same for both terms:
$4\sqrt {7xz} + 2\sqrt {7xz}$ = $(4+2)\sqrt {7xz}=6\sqrt{7xz}$
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 - Chapter Test - Page 427: 8
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