Answer
$3x^2y^{3}$
Work Step by Step
$\sqrt {9x^4y^{6}}=3x^2y^{3}$
because,
$(3x^2y^{3})^2=9x^4y^{6}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.1 - Radical Expressions and Radical Functions - Exercise Set - Page 686: 68
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