Intermediate Algebra (12th Edition)

Published by Pearson

Chapter 4 - Section 4.1 - Integer Exponents and Scientific Notation - 4.1 Exercises: 45

Answer

$\frac{4}{x^{2}}$

Work Step by Step

According to the negative exponent rule, $a^{-n}=\frac{1}{a^{n}}$. Therefore, $4x^{-2}=\frac{4}{x^{2}}$. Since there are no parentheses around $4x$, the base of the exponent is $x$ (and not $4x$).

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