___ 2 \/ 5 - x > x - 1
-x^2 + sqrt(5) > x - 1
/ _____________ _____________ \ | / ___ / ___ | | 1 \/ 5 + 4*\/ 5 1 \/ 5 + 4*\/ 5 | And|x < - - + ----------------, - - - ---------------- < x| \ 2 2 2 2 /
(x < -1/2 + sqrt(5 + 4*sqrt(5))/2)∧(-1/2 - sqrt(5 + 4*sqrt(5))/2 < x)