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Автор - laffmur

Выполните действия:
а-в/ав + а-в/в^2

Ответ

Автор - mednik5

Ответ:

(a-b)/ab+(a-b)/b²= (a(a-b)+a(a-b))/ab²=(ab-b²+a²-ab)/ab²=(-b²+a²)/ab²

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