Question

If f(x)=3x-3 and g(x)= x^3 + 27, what is g(f(x))?

a. 27x^3
b. 27x^3-81x^2+81x
c. 9x^2-18x+36
d. 3x^3+78

Answer 1

C.

Answer 2

Wrong answer :(

Answer 3

It says it was B...

Answer 4

Dangit.. I guess I'll have to stop going C for cats.. lol.

Answer 5

Lol

Answer 6

since g(x) = x^3 + 27 , for any value of x, lets say x=k

g(k) = k^3 + 27

if we let k = f(x) = 3x-3

g(k) = k^3 + 27

g(f(x)) = (f(x))^3 + 27

g(f(x)) = (3x-3)^3 + 27

and sinplify