Tlg dijawab ya, trimkasih!​

Fog(x) = x+ 7/(x+7)² + 1
fog(x) = x+7/ x² + 14x + 50

gof(x) = x/x² + 1 + 7
gof(x) = x + 7x² + 7/ x² + 1
gof(x) = 7x² + x + 7/ x² + 1