X^3/(x^2-4)-x/(x-2)-2/(x+2)=x-1
х³ -х*(х+2)-2*(х-2) х³-х²-2х-2х+4 х³-х²-4х+4 х²(х-1)-4(х-1)
---------------------------- = ------------------------ = ---------------- = --------------------- =
( х+2)(х-2) (х+2)(х-2) (x²-4) (x²-4)
(х-1)(х²-4)
= -------------------- = х-1
(x²-4)