Помогите решить пожалуйста
2x/(x²-9) - 1/(x+3) = 2x/((x-3)(x+3)) - 1/(x+3) = =2x/((x-3)(x+3)) -(x-3)/((x-3)(x+3)) = =(2x-(x-3))/((x-3)(x+3))= =(2x-x+3)/((x-3)(x+3))= =(x+3)/((x-3)(x+3))= =1/(x-3)