Diketahui g(x+1)=2x-1 dan f(g(x+1)) =2x+4 naka nilai f(0)

f(g(x+1)=2x+4
f(2x-1)=2x+4
misal
t = 2x-1
2x=t+1
x= t+1 / 2
maka
f(x) = 2(t+1 / 2)+4
=t+1+4
=t+5
f(x) = x+5

maka
f(0)=0+5=5