Raise 9 to the 3rd power, subtract d from the result, then divide what you have by c

Raise 9 to the 3rd power, subtract d from the result, then divide what you have by c.

This is an algebraic expression, let's take in parts (or chunks).

Raise 9 to the 3rd power. This means we take 9, and raise it to an exponent of 3
9^3

Subtract d from the result, means we subtract d from 9^3
9^3 - d

Now we divide 9^3 - d by c
(9^3 - d) / c