Question

4 to the third power divided by (2-18)x(negitive8-3)

Answer 1

....divided by (2-18)x(negitive8-3)

don't know what you mean by that.

is the question:
4^3/ [(2^-18)(-8^-3)] ??

notice how we show powers.
e.g. 5^3 is "5 to the third"