2 (x - 5)*(x + 2) - x - 9 >= 7 - 14*x
-x^2 + (x - 5)*(x + 2) - 9 >= 7 - 14*x
/26 \ And|-- <= x, x < oo| \11 /
(26/11 <= x)∧(x < oo)
26 [--, oo) 11
x in Interval(26/11, oo)