diketahui f(x)=2x+3 dan (f.g)(x)=xpangakt 2-2x+1maka g(0)

(f•g)(x)=x²-2x+1
f(g(x))=x²-2x+1
2(g(x))+3=x²-2x+1
2(g(x))=x²-2x+1-3
2(g(x))=x²-2x-2
g(x)=x²-2x-2/2
g(x)=1/2x²-x
g(0)=1/2(0)²-0
g(0)=0