Question

Evaluate the following expression.
6^-3.
Needs to be in a fraction please help.

Answer 1

use the rule that

\[\large x^{-k} = \frac{1}{x^k}\]

to get

\[\large 6^{-3} = \frac{1}{6^3} = ???\]

Answer 2

in other words, whenever a number is raised to a negative number, you put a 1 over it and make the number it's being raised to positive. so, 2^-3 is 1/2^3. 6^-20 is 1/6^20, etc.