x-2分之x-1除以x^2-4分之x^2-2x+1

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x-2分之x-1除以x^2-4分之x^2-2x+1x-2分之x-1除以x^2-4分之x^2-2x+1x-2分之x-1除以x^2-4分之x^2-2x+1原式=(x-1)/(x-2)÷(x-1)²

x-2分之x-1除以x^2-4分之x^2-2x+1
x-2分之x-1除以x^2-4分之x^2-2x+1

x-2分之x-1除以x^2-4分之x^2-2x+1
原式=(x-1)/(x-2)÷(x-1)²/(x+2)(x-2)
=(x-1)/(x-2)*(x+2)(x-2)/(x-1)²
=(x+2)/(x-1)

化简后得:x-1分之x+2