问题
解答题
（
|
答案
(
-1 x
+x-3 1-x
)÷(1+2 x2-x
-3 x
)4 x2
=
÷(x-1)+(x-3)x+2 x(x-1)
=x2+3x-4 x2
×x2-2x+1 x(x-1)
=x2 x2+3x-4
．x x+4
故答案为
．x x+4
搜题请搜索小程序“爱下问搜题”
（
|
(
-1 x
+x-3 1-x
)÷(1+2 x2-x
-3 x
)4 x2
=
÷(x-1)+(x-3)x+2 x(x-1)
=x2+3x-4 x2
×x2-2x+1 x(x-1)
=x2 x2+3x-4
．x x+4
故答案为
．x x+4