dfsdsdg { 2x^2 + 4y^2 = 24 -------> (:) на 2 -----> x^2 + 2y^2 = 12
{ 4x^2 + 8y^2 = 24x -----> (:) на 4 ----> x^2 + 2y^2 = 6x
=>
{ x^2 + 2y^2 = 12
{ x^2 + 2y^2 = 6x
=> вычесть уравнения:
(x^2 + 2y^2) - (x^2 + 2y^2) = 12 - 6x
6x = 12
x = 2
=>
x^2 + 2y^2 = 12
2^2 + 2y^2 = 12
2y^2 = 12 - 4
y^2 = 4
y = + -2