Решите систему уравнений. Ответы, которые должны получиться: (2;3), (3;2), (1;5), (5;1). Нужно само решение
[tex] \left \{ {{x + xy + y = 11} \atop { x^{2} y + x y^{2} = 30 }} \right. [/tex]
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