/ 2 \ log\x - 9/ < log(39 - 2*x)
log(x^2 - 9) < log(39 - 2*x)
Or(And(-8 < x, x < -3), And(3 < x, x < 6))
((-8 < x)∧(x < -3))∨((3 < x)∧(x < 6))
(-8, -3) U (3, 6)
x in Union(Interval.open(-8, -3), Interval.open(3, 6))