2/(x+6)^2 -12/(6 -x)(6+x) =1/(x -6)
2/(x+6)^2 +12/(x -6)(6+x) =1/(x -6)
(2(x -6) +12(x+6)) /(x -6)(x+6)^2 =1/(x -6)
(2x -12 +12x +72) /(x -6)(x+6)^2 -1/(x -6) =0
((14x +60) -(x +6)^2) /(x-6)(x+6)^2 =0
14x +60 -x^2 -12x -36 =0, *(-1)
x^2 -2x -24 =0
D =4 +4*24 =100 =10^2
x1 =(2 -10)/2 = -4
x2 =(2+10)/2 =6
ответ: x1 = -4; x =6