Answer:
4^-2 OR 1/4^2
(these are equal)
Explanation:
Exponent Rules are shortcuts. They are good because, well, because they are shortcuts. But they are not good because they take away the meaning of what is happening with the exponents.
So, the rules are:
When multiplying, add the exponents.
When dividing, subtract the exponents.
To "fix" a negative exponent, "push" it across a fraction bar.
See image.