2 x -- < 11*x - 4/5 2
x^2/2 < 11*x - 4/5
/ ______ ______ \ | \/ 2985 \/ 2985 | And|x < 11 + --------, 11 - -------- < x| \ 5 5 /
(x < 11 + sqrt(2985)/5)∧(11 - sqrt(2985)/5 < x)
______ ______ \/ 2985 \/ 2985 (11 - --------, 11 + --------) 5 5
x in Interval.open(11 - sqrt(2985)/5, sqrt(2985)/5 + 11)