5^-3 is 1/125
The negative in the exponent makes it so there is a 1 over the problem if there was no negative. When you have a negative in the exponent, the answer will be the reciprocal (opposite) of the question with no negative.
For example,
9^2 = 81
9^-2 = 1/81
Z=72, i was working on it and that’s what i got
Yes it makes it a true statement because if my math is correct it will add up and the negative is not canceled. That’s only with multiplication