X^2-9x/x+3=36/x+3 Помогите пожалуйста.
(x² -9x)/(x +3) =36/(x +3) (x² -9x -36) /(x +3) =0 x² -9x -36 =0 D =81 +144 =225 =15² x1 =(9 -15)/2 = -3 x2 =(9 +15)/2 =12