Question

РЕШИТЬ СИСТЕМУ УРАВНЕНИЙ

Answer 1

$+\left \{ {{x^{2}+2y^{2}=172} \atop {3x^{2}-2y^{2}=228}} \right.\\ --------\\4x^{2}=400\\\\x^{2}=100\\\\x_{1}=-10\\\\x_{2}=10\\\\2y^{2}=172-100\\\\2y^{2}=72\\\\y^{2}=36\\\\y_{1}=-6\\\\y_{2}=6$

Ответ : (10 ; 6) , (10 - 6) , (- 10 , - 6) , (- 10 ; 6)

Answer 2

Держи...............