解:2/(x+1)+3/(x-1)=m/(x²-1)方程两边都乘以(x²-1),去分母得,2(x-1)+3(x+1)=m5x+1=m方程有增根,即分母为0,x+1=0或x-1=0即x=-1或1当x=-1时,m=-5+1=-4当x=1时,m=5+1=6 愿对你有所帮助!
解:方程两边都乘以(x-1)得,3x²=m,∵分式方程有增根,∴x-1=0,解得x=1,∴m=3×1²=3.