Question

x-2y=2
3x-y^2=11
решите!!!

Answer 1

$x - 2y = 2 \ 3x - {y}^{2} = 11 \ \ x = 2 + 2y \ 3(2 + 2y) - {y}^{2} = 1 1\ \ x = 2 + 2y \ 6 + 6y - {y}^{2} - 11 = 0 \ \ x = 2 + 2y \ - {y}^{2} + 6y - 5 = 0 \ \ x = 2 + 2y \ {y}^{2} - 6y + 5 = 0 \ \ y1 = 5\ x1 = 12 \ \ y2 = 1 \ x2 = 4$
Ответ: (12; 5), (4; 1)