30 баллов Решите систему уравнений 4х+у=-3 -y-x² =6 срочно
4x + y = - 3 - x^2 - y = 6 ---------------------- + 4x - x^2 = 3 - x^2 + 4x - 3 = 0 x^2 - 4x + 3 = 0 D = 16 - 12 = 4 x1 = (4 + 2)/2 = 6/2 = 3 x2 = (4 - 2)/2 = 2/2 = 1 x1 = 3 y1 = - 3 - 12 = - 15 x2 = 1 y1 = - 3 - 4 = - 7 Ответ (3; - 15); (1; - 7)