Question

Find f(g(2)) if
f(x) = x3+4
g(x) = x + 3

Answer 1

Answer:

129.

Step-by-step explanation:

We substitute x + 3 for the x in f(x):

f(g(x)) = (x + 3)^3 + 4

So f(g(2)) = (2 + 3)^3 + 4

= 125 + 4

= 129.