Intermediate Algebra (6th Edition)

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

Chapter 9 - Section 9.1 - The Algebra of Functions; Composite Functions - Exercise Set - Page 540: 5

Answer

$(f+g)(x)=\sqrt[3] x+x+5$ $(f−g)(x)=\sqrt[3] x-x-5$ $(f×g)(x)=x\sqrt[3] x+5\sqrt[3] x$ $(\frac{f}{g})(x)=\frac{\sqrt[3] x}{x+5}$

Work Step by Step

If $f(x)=\sqrt[3] x$ and $g(x)=x+5$, then $(f+g)(x)=f(x)+g(x)=\sqrt[3] x+x+5$ $(f−g)(x)=f(x)−g(x)=\sqrt[3] x-x-5$ $(f×g)(x)=f(x)×g(x)=(\sqrt[3] x)×(x+5)=x\sqrt[3] x+5\sqrt[3] x$ $(\frac{f}{g})(x)=\frac{f(x)}{g(x)}=\frac{\sqrt[3] x}{x+5}$
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