3/(х-1)(х-1) + 2/(х+1)(х-1) - 1/(х+1)=0 (3х+3+2х-2-х^2+2x-1) / (x-1) (x-1) (x+1) =0 x^2 - 7x =0 x ( x - 7) = 0 x=0 и x=7 ОДЗ: х не равно +(-)1