Предмет: Математика, автор: dashasambyrskaya


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Автор ответа: alexkorst
1

Ответ:

3)

Пошаговое объяснение:

1) x²-25=(x-5)(x+5)

2) 2x²-7x+15=(x-5)(2x+3)

3) Дальше сокращаешь x-5 в числители и знаменателе и получается вариант 3.

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