问题
解答题
化简：(
|
答案
(
-x+2 x2-2x
)÷x-1 x2-4x+4 x-4 x
=
×(x+2)(x-2)-x(x-1) x(x-2)2 x x-4
=
×x2-4-x2+x x(x-2)2 x x-4
=
．1 (x-2)2
搜题请搜索小程序“爱下问搜题”
化简：(
|
(
-x+2 x2-2x
)÷x-1 x2-4x+4 x-4 x
=
×(x+2)(x-2)-x(x-1) x(x-2)2 x x-4
=
×x2-4-x2+x x(x-2)2 x x-4
=
．1 (x-2)2
