Find f(x) such that h(x)= (f•g)(x) and g(x)=2+x^9/2-x^9
h(x)=((2+x^9)/(2-x^9))^2
f(x) = x^2
Proof
f(g) =
f([2+x^9]/[2-x^9] ) =
([2+x^9]/[2-x^9] )^2 = h(x)
BTW...the answer may not be unique.........
+15 
