化简(x^2-4x+4)/(x^2-2x)÷(x-4/x)

问题描述:

化简(x^2-4x+4)/(x^2-2x)÷(x-4/x)

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