3/(X^2-6x+9)=1/(x+3)-6/9-(x^2) Пжжжжжжжжжжжжжжж
пж
3/(x-3)²=1/(x+3)+6/(x-3)(x+3) x≠3 U x=-3 3(x+3)=(x-3)²+6(x-3) 3x+9=x²-6x+9+6x-18 x²-9-3x-9=0 x²-3x-18=0 x1+x2=3 U x18x2=-18 x1=-3 не удов усл x2=6