Предмет: Математика, автор: makaron223062

помогите решить пожалуйста

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Ответы

Автор ответа: iliyaburov2010

1

Ответ:

x+y=5-xy=0

x²+y²=7-xy=2

Пошаговое объяснение:

мы xy предстовляем как 5 и 5-5 получим ноль а 7-5 получим 2

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