x - 9 ___ --------- <= x*\/ x + 27 ___ \/ x - 3
(x - 9)/(sqrt(x) - 3) <= sqrt(x)*x + 27
Or(And(0 <= x, x < 9), And(9 < x, x < oo))
((0 <= x)∧(x < 9))∨((9 < x)∧(x < oo))
[0, 9) U (9, oo)
x in Union(Interval.Ropen(0, 9), Interval.open(9, oo))