(2*x - 1)*(x + 3) < 1 - 3*x
(x + 3)*(2*x - 1) < 1 - 3*x
___ ___ (-2 - \/ 6 , -2 + \/ 6 )
x in Interval.open(-sqrt(6) - 2, -2 + sqrt(6))
/ ___ ___ \ And\x < -2 + \/ 6 , -2 - \/ 6 < x/
(x < -2 + sqrt(6))∧(-2 - sqrt(6) < x)