Answer
$\displaystyle \frac{3}{x^{4}}$
Work Step by Step
Use: $a^{-n}=\displaystyle \frac{1}{a^{n}}$
$3x^{-4}=3\displaystyle \cdot\frac{1}{x^{4}}=\frac{3}{x^{4}}$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 0 - Section 0.2 - Exponents and Radicals - Exercises - Page 16: 31
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