/ 2 \ / 2 \ (x + 3)*\x - 3*x + 9/ > \x + 6/*(x - 1)
(x + 3)*(x^2 - 3*x + 9) > (x - 1)*(x^2 + 6)
And(-oo < x, x < oo)
(-oo < x)∧(x < oo)
(-oo, oo)
x in Interval(-oo, oo)