Question

Plz explain how to do this

Answer 1

Here is the definition of a negative exponent.

For any non-zero value of a,


`a^(-n) = (1)/(a^n)`

Look at your problem and follow the definition.


`4^(-3) = (1)/(4^3)`

Since 4^3 = 4 * 4 * 4 = 64, we can now write:


`4^(-3) = (1)/(4^3) = (1)/(4 * 4 * 4) = (1)/(64)`