2 1 1 - - 4 - x + 8*-*2 - 16 - 1*- x x x
2/x - 1*4 - x + 8*2/x - 1*16 - 1/x
17 -20 - x + -- x
17 + x*(-20 - x) ---------------- x
(17 + x*(-20 - x))/x
2 17 - x - 20*x -------------- x
(17 - x^2 - 20*x)/x
/ 2 \ -\-17 + x + 20*x/ ------------------- x
-(-17 + x^2 + 20*x)/x