Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Section 7.2 - Rational Exponents - Exercise Set - Page 424: 11

Answer

$3x^{2}$

Work Step by Step

$(9x^{4})^{\frac{1}{2}}=\sqrt (9x^{4})=3x^{2}$ We know this because $(3x^{2})^{2}=3x^{2}\times3x^{2}=(3\times3)\times x^{2+2}=9x^{4}$
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