How do you evaluate #(-9)^3#?

1 Answer
Jan 4, 2017

The answer to this is -729.


What you can do first to this question is find out what #9^3# is.

The answer to that is 729.

Then, look at the exponent itself.

If the exponent is an even number, then the answer will always be positive; since a negative number #times# a negative number is equal to a positive one.

In this case, the exponent is odd and the number is negative, so the answer will be negative.

You can just plop that negative sign in front of the 729 you already calculated, and that's your answer!