f(x)=x2-7x dan g(x)=x-1 fungsi komposisi (fog)(x)

(fog)(x)=f(g(x))
=f(x-1)
=(x-1)²- 7(x-1)
=x²-2x+1 - 7x+7
=x²-2x-7x+1+7
=x²-9x+8
smoga membantu ya