1/х-2 + 4/4-х²=1/х-2 - 4/х²-4= 1/х-2 - 4/(х-2)(х+2)=1(х+2)-4/(х-2)(х+2)=х+2-4/(х-2)(х+2)=х-2/(х-2)(х+2)=1/х+2
1/х-2 + 4/4-х²=1/х-2 - 4/х²-4= 1/х-2 - 4/(х-2)(х+2)=1(х+2)-4/(х-2)(х+2)=х+2-4/(х-2)(х+2)=х-2/(х-2)(х+2)=1/х+2