Question

соч!!! Пожалуйста помогите ​

Answer 1

Ответ:

$(x1,y1) = (-3,-4)\\(x2,y2) = (-3,-4)\\(x3,y3) = (2, -\sqrt{21} )\\(x4,y4) = (2, \sqrt{21} )$

Объяснение:

$\left \{ {{5x^2-y^2+6x=11} \atop {x^2+y^2=25}} \right.\\\left \{ {{5x^2-y^2+6x=11} \atop {y^2=25-x^2}} \right.\\5x^2-(25-x^2)+6x=11\\x=-3\\x=2\\y^2=25-(-3)^2\\y^2=25-2^2\\y=-4\\y=4\\y=-\sqrt{21} \\y=\sqrt{21}\\(x1,y1) = (-3,-4)\\(x2,y2) = (-3,-4)\\(x3,y3) = (2, -\sqrt{21} )\\(x4,y4) = (2, \sqrt{21} )$