Question

Given f:x →x^2 +1 and another function g such that fg :x + x² + 4x +5.
Find the function of g.

Answer 1

g(x) = x+2

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