Answer:
25
Step-by-step explanation:
First you have to understand what f(3) means.
f(x) = x^3 - 2
f(3) means that wherever you see and x, you put in a 3.
f(3) = 3^3 - 2
f(3) = 3*3*3 - 2
f(3) = 27 - 2
f(3) = 25
