[x-(x+1分之2x)]÷x²-1分之x²-2x+1

来源：学生作业帮助网编辑：六六作业网时间：2024/05/16 05:06:46

[x-(x+1分之2x)]÷x²-1分之x²-2x+1[x-(x+1分之2x)]÷x²-1分之x²-2x+1[x-(x+1分之2x)]÷x²-1分之x

[x-(x+1分之2x)]÷x²-1分之x²-2x+1
[x-(x+1分之2x)]÷x²-1分之x²-2x+1

[x-(x+1分之2x)]÷x²-1分之x²-2x+1
[x-(x+1分之2x)]÷x²-1分之x²-2x+1
＝[x-(2x/x+1)]×[(x+1)(x-1)/(x-1)²]
＝[(x²-x)/(x+1)]×[(x+1)/(x-1)]
＝[x(x-1)/(x+1)]×[(x+1)/(x-1)]
＝x