Question

срочно нужно пожалуйста

Answer 1

$left { {{x+y=2} atop {x^2+y^2=100}} right. ; left { {{(x+y)^2=4} atop {x^2+y^2=100}} right. ; left { {{x^2+y^2=4-2xy} atop {x^2+y^2=100}} right. ; left { {{100=4-2xy} atop {x+y=2}} right. ; left { {{xy=-48} atop {x+y=2}} right. \\ left { {{x(2-x)=-48} atop {y=2-x}} right. ; ; x^2-2x-48=0\\x_1=-6,; ; x_2=8\\y_1=8; ,; y_2=-6\\Otvet:; ; (-6,8); ,; (8,-6); .$