Срочно нужна помощь! x²+xy+2y²=74 2x²+2xy+y²=73Это система.

$\left \{ {{2 (x^{2} + xy)+ y^{2}=73 } \atop x^{2} +xy=74-2 y^{2} }} \right.\\\\ \left \{ {{2(74-2 y^{2})+ y^{2} =73 } \atop { x^{2} +xy=74-2 y^{2} }} \right.\\\\ \left \{ {{148-4 y^{2}+ y^{2}=73 } \atop { x^{2} +xy=74-2 y^{2} }} \right.\\\\ \left \{ {{-3 y^{2}=-75 } \atop { x^{2} +xy=74-2 y^{2} }} \right. \\\\ \left \{ {{ y^{2}=25 } \atop { x^{2} +xy=74-50}} \right. \\\\ \left \{ {{ y^{2}=25 } \atop { x^{2} +xy=24}} \right. \\\\ \left \{ {{y=5} \atop { x^{2} +5x-24=0}} \right.$ $\left \{ {{y=-5} \atop { x^{2} -5x-24=0}} \right.\\\\ \left \{ {{y=5} \atop {x=-8}} \right.$ $\left \{ {{y=5} \atop {x=3}} \right.\\\\ \left \{ {{y=-5} \atop {x=8}} \right.\\\\ \left \{ {{y=-5} \atop {x=-3}} \right.$
Ответ: (5 ; 3) , (5 ; - 8) , (- 5 , 8), ( - 5 , - 3 )