Question

пожалуйста, решите систему,подробно
2х^2+y^2=36
8x^2+4y^2=36x

Answer 1

$left { {{2x^2+y^2=36} atop {8x^2+4y^2=36x}} right. left { {{2x^2+y^2=36} atop {4(2x^2+y^2)=36x}} right. left { {{2x^2+y^2=36} atop {4*36=36x}} right. \ \ left { {{2x^2+y^2=36} atop {x=4}} right. left { {{2*4^2+y^2=36} atop {x=4}} right. left { {{32+y^2=36} atop {x=4}} right. left { {{y^2=4} atop {x=4}} right. \ left { {{y=-2} atop {x=2}} right. left { {{y=2} atop {x=2}} right.$

ответ: (2;-2); (2;2)