Diketahui g(x) = x-2 dan f(x)= x²-x +5. Ditanya: a) (fog)(x) b) (gof)(x) c) (f-1og)(x)

a. (fog)(x) ---> f(x-2) = x² -x +5
= (x-2)² -(x-2) +5
= x²-4x+4 -x+2 +5 = x²-5x+11
b. (gof)(x) ---> g(x²-x+5) = x-2
= (x²-x+5)-2 = x² -x +3