Jawabanmu

2014-05-07T21:52:57+07:00
Fog (x) = (x+1)^2 + (x+1) - 1
fog (x) = (x^2 + 2x + 1) + (x+1) - 1
fog (x) = x^2 + 3x + 1
2014-05-07T21:56:43+07:00
F(fog)(x)=f(g(x))
=(x+1)^2+(x+1)-1
=x^2+2x+1+x+1-1
=X^2+3x+1