Question

negative exponent law states: you must change the exponent to a positive by doing what?
just change it to positive
move it to the opposite side of fraction bar
move to the bottom of fraction bar

Explanation:

The Negative Exponent Law means that a term with a negative exponent can be rewritten by moving the term to the opposite side of the fraction bar, which makes the exponent positive. For example, $a^{-n} = \frac{1}{a^n}$ and $\frac{1}{a^{-n}} = a^n$.

Answer:

move it to the opposite side of fraction bar