_____ _________ \/ 3*x + 1 > \/ 5*x - 1
sqrt(3*x) + 1 > sqrt(5*x - 1)
/ ____\ | 5 \/ 21 | And|1/5 <= x, x < - + ------| \ 2 2 /
(1/5 <= x)∧(x < 5/2 + sqrt(21)/2)
____ 5 \/ 21 [1/5, - + ------) 2 2
x in Interval.Ropen(1/5, sqrt(21)/2 + 5/2)