Question

Let f(x)=3x-2 and g(x)=x^2+4 find f(g(12)

Let f(x)=3x-2 and Let g(x)=x^2+4.

Find f(g(12)).

Answer 1

442

Explanation:

Find g(12) first.

12^2 + 4 = 144 + 4 = 148.

Now find f(148).

(3 x 148) -2 = 444-2 = 442.