Question

Решите систему уравнений 5х^2+у^2=36 и 10х^2+2у^2=36х

Answer 1

$\left \{ {{5x^2+y^2=36} \atop {10x^2+2y^2=36x}} \right. \\ \\ \left \{ {{-10x^2-2y^2=-72} \atop {10x^2+2y^2=36x}} \right. \\ \\ -10x^2+10x^2-2y^2+2y^2=-72+36x \\ \\ 0=-72+36x \\ \\ -36x=-72 \\ \\ x=2 \\ \\ 5*2^2+y^2=36 \\ \\ y^2=16 \\ \\ y_1=-4 \\ \\ y_2=4$

Ответ: (2; -4) и (2; 4)

Answer 2

Решение на фото)))))))))