
解方程啊!拜托了,我急
展开全部
3/(x²-1)-2/(x+1)=0
3/(x²-1)-2(x-1)/(x+1)(x-1)=0
3/(x²-1)-(2x-2)/(x²-1)=0
(3-2x+2)/(x²-1)=0
(-2x+5)/(x²-1)=0
∴-2x+5=0
x²-1≠0
解得x=2.5
3/(x²-1)-2(x-1)/(x+1)(x-1)=0
3/(x²-1)-(2x-2)/(x²-1)=0
(3-2x+2)/(x²-1)=0
(-2x+5)/(x²-1)=0
∴-2x+5=0
x²-1≠0
解得x=2.5
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询