计算:(x^2y-4y)÷(xy-2y)=___

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计算:(x^2y-4y)÷(xy-2y)=___
计算:(x^2y-4y)÷(xy-2y)=___

计算:(x^2y-4y)÷(xy-2y)=___
=(x^2-4)/(x-2)
=x+2