Asked by zie

If ƒ: x→x+3 find the function g such that gf : x →x²+4x+5
Answered by drwls
f(x) = x+3 and
f{g(x)} = x^2 + 4x + 5
requires that g(x) = x^2 + 4x + 2
since f{g} adds three to g