Ответ:
Объяснение:
(y^2-y)/y^2=y(y-1)/y^2=(y-1)/y
(x^2+3x)/(x^2-9)=x(x+3)/(x-3)(x+3)=x/(x-3)
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Ответ:
Объяснение:
(y^2-y)/y^2=y(y-1)/y^2=(y-1)/y
(x^2+3x)/(x^2-9)=x(x+3)/(x-3)(x+3)=x/(x-3)