2 / 2 \ | 2 25*x - 10*x - 8| |---------------- + ----------------| >= 4 | 2 2 | \25*x - 10*x - 8 /
((25*x^2 - 10*x - 8)/2 + 2/(25*x^2 - 10*x - 8))^2 >= 4
Or(And(-2/5 < x, x < 4/5), And(4/5 < x, x < oo), x < -2/5)
(x < -2/5)∨((-2/5 < x)∧(x < 4/5))∨((4/5 < x)∧(x < oo))
(-oo, -2/5) U (-2/5, 4/5) U (4/5, oo)
x in Union(Interval.open(-oo, -2/5), Interval.open(-2/5, 4/5), Interval.open(4/5, oo))