先化简,再求值:(x-1-8⼀x+1)÷x+3⼀x+1,其中x=2⼀3。

2025-05-20 11:21:48
推荐回答(2个)
回答1:

原式是这样(x-1-8/(x+1))/x+3/(x+1)?

回答2:

(x-1-8/x+1)÷x+3/x+1

=(x-1-8/x+1)Xx+1/x+3
=x-9/x+3
=2/3-9/2/3+3
=-25/11