2 x - 2*x - 3 ------------ <= 3 - x 4 - x
(x^2 - 2*x - 3)/(4 - x) <= 3 - x
Or(And(x <= 3, -oo < x), And(4 < x, x < oo))
((x <= 3)∧(-oo < x))∨((4 < x)∧(x < oo))
(-oo, 3] U (4, oo)
x in Union(Interval(-oo, 3), Interval.open(4, oo))