问题
解答题
计算：
|
答案
÷x-3 x2-1
-x2+x x2+2x+1 1 x-1
=
×x-3 (x+1)(x-1)
-(x+1)2 x(x+1) 1 x-1
=
-x-3 x(x-1) 1 x-1
=-
．3 x(x-1)
搜题请搜索小程序“爱下问搜题”
计算：
|
÷x-3 x2-1
-x2+x x2+2x+1 1 x-1
=
×x-3 (x+1)(x-1)
-(x+1)2 x(x+1) 1 x-1
=
-x-3 x(x-1) 1 x-1
=-
．3 x(x-1)