3 2 x - x >= 6*x
x^3 - x^2 >= 6*x
Or(And(-2 <= x, x <= 0), And(3 <= x, x < oo))
((-2 <= x)∧(x <= 0))∨((3 <= x)∧(x < oo))
[-2, 0] U [3, oo)
x in Union(Interval(-2, 0), Interval(3, oo))