__________ / 2 1 - \/ 1 - 4*x ----------------- < 3 x
(1 - sqrt(1 - 4*x^2))/x < 3
Or(And(-1/2 <= x, x < 0), And(x <= 1/2, 0 < x))
((-1/2 <= x)∧(x < 0))∨((x <= 1/2)∧(0 < x))
[-1/2, 0) U (0, 1/2]
x in Union(Interval.Ropen(-1/2, 0), Interval.Lopen(0, 1/2))