Question

Find f(3). f(x) = x3 - 7
A) 2
B) 10
C) 12
D) 20

Answer 1

3^3 - 7
(3 x 3 x 3) - 7
27 - 7
= 20

hope this helps :)

Answer 2

To find f(3), just plug in 3 for x.


I'm assuming you meant for 3 to be x^3


3^3 - 7 = 27 - 7 = 20