An exponent is a number or expression written above a number indicating how many times the number is being multiplied by itself.
(- 15)^3
We want to write the given expression using exponents. Recall that an exponent is a number or expression written above a number indicating how many times that number is being multiplied by itself.
Let's consider the given expression.
We can see that the factor (- 15) is being multiplied by itself three times.
(- 15)^3