_______ _______ _______ \/ x + 4 - \/ x - 1 < \/ x - 2
-sqrt(x - 1) + sqrt(x + 4) < sqrt(x - 2)
____ 1 2*\/ 31 (- - + --------, oo) 3 3
x in Interval.open(-1/3 + 2*sqrt(31)/3, oo)
/ ____ \ | 1 2*\/ 31 | And|x < oo, - - + -------- < x| \ 3 3 /
(x < oo)∧(-1/3 + 2*sqrt(31)/3 < x)