Respuesta :

RealNfw

Answer:

g(x) = x+2

Step-by-step explanation:

f(x) = x^2 + 1

fg(x) = x^2 + 4x + 5

Find the function g(x) so that when you put it into f(x) you get x^2 +4x + 5

g(x) = x+2