tentukan rumus fungsi f dan rumus (fog) untuk tiap kondisi (gof)(x) = (x-4)^2 dan g (x)=x-8 tolong bantuin yah pake caranya

(gof) (x) = (x-4)²
g(f(x)) = x²-8x +16
f(x) -8 = x²-8x +16
f(x) = x²-8x +16+8
f(x) = x²-8x +24
(fog) (x) = (x-8)²-8(x-8)+16
= x²-16x +64-8x +64 +16
= x² -24x +144