答:
x²-3x-3/x+1/x²+4=0
两边同乘以x²得:
x^4-3x³+4x²-3x+1=0
(x-1)(x³-2x²+2x-1)=0
(x-1)(x-1)(x²-x+1)=0
所以:x-1=0
解得:x=1
经检验,x=1是原分式方程的解