(x-7/x-2)+(x+4/x+2)=1

Домножим левую и правую части уравнения на (x - 2) * (x +2):(x - 7) * (x + 2) + (x + 4) * (x - 2) = (x - 2) * (x +2)x^2 + 2x - 7x - 14 + x^2 - 2x + 4x - 8 = x^2 - 4x^2 -7x -18 = 0x12 = (7 +-√(49 - 4 * (-18)) / 2 = (7 +-√121) / 2x1 = (7 + 11) / 2 = 9 x2 = (7 - 11) / 2 = -2.