Question

ПОМОГИТЕ ПОЖАЛУЙСТА!!!​

Answer 1

$\displaystyle\bf\\+\left \{ {{x^{2} +y^{2}=5 } \atop {x^{2} -y^{2} =3}} \right. \\--------\\2x^{2} =8\\\\x^{2} =4\\\\x=\pm \ \sqrt{4}=\pm \ 2 \\\\y^{2}=5-x^{2} =5-4=1\\\\y=\pm \ \sqrt{1} =\pm \ 1\\\\\\Otvet \ : \ \Big(-2 \ ; \ -1\Big) \ , \ \Big(-2 \ ; \ 1\Big) \ , \ \Big(2 \ ; \ -1\Big) \ , \ \Big(2 \ ; \ 1\Big)$