(x + 3)*(x - 6) > (x + 4)*(x - 5)
(x - 6)*(x + 3) > (x - 5)*(x + 4)
And(-oo < x, x < 1)
(-oo < x)∧(x < 1)
(-oo, 1)
x in Interval.open(-oo, 1)