find f(x) and g(x) such that h(x)=(fog)(x)

Question

_{Specifically h(x)=2/(x-6)^9}

My teacher gives us these problems and gives four answers and we are supposed to check all that apply

I don't know how to know what applies

Answer 1

h(x) = 2 / (x - 6)⁹

g(x) = x - 6

f(x) = 2 / x⁹