a ----- + 1 a + 1 ------------- 3*a 1 - --- - 2*a 10
a 1 + ----- 1 + a --------- 23*a 1 - ---- 10
(1.0 + a/(1.0 + a))/(1.0 - 2.3*a)
10 + 20*a ------------------- (1 + a)*(10 - 23*a)
10*(1 + 2*a) ------------------- (1 + a)*(10 - 23*a)
a 1 + ----- a + 1 ------------- 3*a 1 - 2*a - --- 10
-(10 + 20*a) ------------------ 2 -10 + 13*a + 23*a
-10*(1 + 2*a) -------------------- (1 + a)*(-10 + 23*a)