Предмет: Алгебра, автор: sindrakovasvetlana

Відомо, що х+y=5, xy=-2. Знайдіть значення виразу (x-y)2​

Ответы

Автор ответа: fenix6810
0

Ответ:

33

Объяснение:

x+y=5

x²+y²=25-2xy=25+4=29

(x-y)²=x²+y²-2xy=29+4=33

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