Предмет: Алгебра, автор: gaziza93g

сократить дробь за 9 класс

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Автор ответа: Аноним

1

$\frac{3a-9}{a^2-9}= \frac{3(a-3)}{(a-3)(a+3)}= \frac{3}{a+3}$

gaziza93g: Спасибо большое.

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Dear Mrs Adamson
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