关于x的方程1/x-2+k/x+2=3/x²-4无解
((x+2)+k(x-2))/(x-2)(x+2)=3/x²-4
((k+1)x+2-2k)/(x²-4)=3/(x²-4)
(k+1)x+2-2k=3
(k+1)x=2k+1
要使方程无解
则k+1=0
k=-1