Автор - nmurshel12

Сократите дробь
1) у² + уу²
2) а² - 2аа² - 4

Ответ

Автор - Miiss1
1) (y(y+1))/y^2=(y+1)/y
2) (a(a-2))/((a-2)(a+2)=a/(a+2)

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