(x²-4x+4)/(x²-2x)÷(x-4/x)=(x-2)²/[x(x-2)]÷[(x²-4)/x]=(x-2)²/[x(x-2)]÷[(x+2)(x-2)/x]=[(x-2)/x]×{x/[(x+2)(x-2)]}=1/(x+2)很高兴为您解答,【学习宝典】团队为您答题.请点击下面的...