Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.3 - Algebraic Expressions - 1.3 Exercises: 54

Answer

$2x-\sqrt x$ or $2x-x^{1/2}$

Work Step by Step

Multiply: $2x^{1/4}x^{3/4}-x^{1/4}x^{1/4}$ Add exponents: $2x^{4/4}-x^{2/4}$ Simplify: $2x-x^{1/2}$
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