Find two functions f and g such that f circle gx hx where h
     Find two functions f and g such that (f circle g)(x) = h(x) where h(x) = 4/squareroot 9x + 2. 
  
  Solution
h(x)= 4/(9x+2)
(fog)(x)=h(x)
f(x)=4/x
g(x)=9x +2

h(x)= 4/(9x+2)
(fog)(x)=h(x)
f(x)=4/x
g(x)=9x +2

