_________ \/ 3*x + 3 < 2*x + 1
sqrt(3*x + 3) < 2*x + 1
/ ____ \ | 1 \/ 33 | And|x < oo, - - + ------ < x| \ 8 8 /
(x < oo)∧(-1/8 + sqrt(33)/8 < x)
____ 1 \/ 33 (- - + ------, oo) 8 8
x in Interval.open(-1/8 + sqrt(33)/8, oo)