2 x - 4*x + 1 < 0
x^2 - 4*x + 1 < 0
___ ___ (2 - \/ 3 , 2 + \/ 3 )
x in Interval.open(2 - sqrt(3), sqrt(3) + 2)
/ ___ ___ \ And\x < 2 + \/ 3 , 2 - \/ 3 < x/
(x < 2 + sqrt(3))∧(2 - sqrt(3) < x)