Предмет: Алгебра, автор: MunoKato

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Автор ответа: Аноним

$\displaystyle 1)\frac{y^2-2y}{y^2}=\frac{y(y-2)}{y^2}=\frac{y-2}{y} \\ \\2)\frac{x^2+4x}{x^2-16}=\frac{x(x+4)}{(x-4)(x+4)}=\frac{x}{x-4}$

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