问题
解答题
化简分式计算:
|
答案
原式=
•x-3 (x+1)(x-1)
-(x+1)2 x(x-3) 1 (x-1)
=
-x+1 x(x-1) 1 (x-1)
=
.1 x(x-1)
当x=2时,原式=
=1 2(2-1)
.1 2
化简分式计算:
|
原式=
•x-3 (x+1)(x-1)
-(x+1)2 x(x-3) 1 (x-1)
=
-x+1 x(x-1) 1 (x-1)
=
.1 x(x-1)
当x=2时,原式=
=1 2(2-1)
.1 2