Предмет: Математика, автор: Розалита12

охохох не могу решить ибо не знаю(

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Автор ответа: sergeya14
0
5-х=0   х= 5
2+х=0   х= -2
положительное значение знаменателя при х = 1
5 - 1                                 4
2+ 1  больше 0                 3 больше 0    
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