Question

Dibantu ya...
jika f(x)=x^2-2x+4 dan g(x+1)=2x-3 maka (fog)(x)=?

Answer 1

Answer 2

G(x+1)=2x-3=2(x+1)-5
g(x)=2x-5
(fog)(x)=f(g(x))
          =f(2x-5)
          =(2x-5)^2-2(2x-5)+4
          =4x^2-20x+25-4x+10+4
          =4x^2-24x+39