2 -y y 11 ---- - - + -- 4 2 4
(-y^2)/4 - y/2 + 11/4
/ ___\ / ___\ \x + 1 - 2*\/ 3 /*\x + 1 + 2*\/ 3 /
(x + 1 - 2*sqrt(3))*(x + 1 + 2*sqrt(3))
11/4 - y/2 - y^2/4
2 11 y y -- - - - -- 4 2 4
2.75 - 0.25*y^2 - 0.5*y
2 88 - 16*y - 8*y ---------------- 32
(88 - 16*y - 8*y^2)/32
11 + y*(-2 - y) --------------- 4
(11 + y*(-2 - y))/4