Question

Решить систему уравнений

Answer 1

$\left \{ {{2x^2+3y^2=11} \atop {4x^2+6y^2=11x}} \right. \left \{ {{-4x^2-6y^2=-11} \atop {4x^2+6y^2=11x}} \right. +\\0=-22+11x\\22=11x\\x=2\\2*2^2+3y^2=11\\3y^2=3\\y=1\\y=-1\\(x_1;y_1)=(2;1)\\(x_2;y_2)=(2;-1)$