三道题 解方程 (1)1⼀X-1=1⼀X^2-1 (2)1⼀x-2+3=x-1⼀x-2 (3)2-x⼀3+x=1⼀2+1⼀x+3

2024-12-23 04:38:43
推荐回答(1个)
回答1:

(1) 1/(x-1)=1/(x^2-1)
1/(x-1)=1/(x-1)(X+1)
1=1/(X+1)
(X+1)=1
X=0