Maple Command	Maple Response
f:= (x,r)-> r*x*(1-x);	f := (x, r) -> r x (1 - x)
g:= (x,r)-> f(f(x,r),r);	g := (x, r) -> f(f(x, r), r)
eqn:= g(x,r) = x;	eqn := r2 x (1 - x) (1 - r x (1 - x)) = x
solutions:= {solve(eqn,x)};
subs(r=3.2, solutions);	{0, .6875000000, .5130445097, .7994554906}