Предмет: Алгебра, автор: Аноним

как это решатьььььььь ​

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Автор ответа: tashmetovanigina7
1

Ответ:

\frac{25}{(5 - a {)}^{2} } - \frac{ a {}^{2} }{(5 - a) {}^{2} } = \frac{25}{a {}^{2} - 25 } - \frac{a {}^{2} }{25 - a {}^{2} } = a { }^{2} - 25

25 и (-25) сокращается и a в квадрате и -а в квадрате тоже сокращается

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