3个回答
展开全部
(x²-2x)÷[(x³-4x²+4x)/(x+1)]
=x(x-2)÷[x(x-2)²/(x+1)]
=x(x-2)(x+1)/[x(x-2)²]
=(x+1)/(x-2)
=x(x-2)÷[x(x-2)²/(x+1)]
=x(x-2)(x+1)/[x(x-2)²]
=(x+1)/(x-2)
本回答被网友采纳
展开全部
(x^2-2x)/x^3-4x^2+4x/x+1
=(x-2)/x^2-4x^2+4+1
=(x-2)/x^2-4x^2+5
=(x-2)/x^2-4x^2+4+1
=(x-2)/x^2-4x^2+5
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