Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.3 - Radicals and Rational Exponents - Exercise Set - Page 46: 93



Work Step by Step

$\displaystyle \frac{20x^{1/2}}{5x^{1/4}}=\frac{20}{5}\cdot\frac{x^{1/2}}{x^{1/4}}\qquad$... apply $\displaystyle \frac{a^{m}}{a^{n}}=a^{m-n}$ $=4\cdot x^{1/2-1/4}\qquad$...$\displaystyle \frac{1}{2}-\frac{1}{4}=\frac{2-1}{4}$ ... $=4x^{1/4}$
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