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Автор - lenok01

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Ответ

Автор - Seri03
frac{x}{x+2} - frac{(x-2) ^{2} }{y} *( frac{1}{x ^{2} -4} + frac{1}{ x^{2} -4x+4} )= frac{x-10}{x+2} \ 1) frac{1}{ x^{2} -4} + frac{1}{ x^{2}-4x+4 } = frac{4+1}{ x^{2} -4x+4}= frac{5}{(x-2) ^{2} } \ 2)- frac{(x-2) ^{2} }{y} * frac{5}{(x-2) ^{2} } =(- frac{(x-2) ^{2}*5 }{y*(x-2) ^{2} } )= frac{5}{x} \ 3)  frac{x}{x+2} - frac{5}{x} = frac{x-10}{x+2}

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