2/(x+1)+3/(x-1)=11/x²-1解方程.
问题描述:
2/(x+1)+3/(x-1)=11/x²-1解方程.
答
2/(x+1)+3/(x-1)=11/(x²-1)
2(x-1)+3(x+1)=11
2x-2+3x+3=11
2x+3x=11+2-3
5x=10
x=2
经检验是原方程的根.