(x - 1)*(x + 5) > 0
Or(And(-oo < x, x < -5), And(1 < x, x < oo))
((-oo < x)∧(x < -5))∨((1 < x)∧(x < oo))
(-oo, -5) U (1, oo)
x in Union(Interval.open(-oo, -5), Interval.open(1, oo))