参考下:
两边乘x(x-1)2(x-1)-m=x(x-1)+x2x-2-m=x²-x+xx²-2x+2+m=0原方程无解有两种情况一个是x²-2x+2+m=0无解则判别式小于04-4(2+m)-1一个是增根,则公分母x(x-1)=0x=0,x=1x=0,代入x²-2x+2+m=0,2+m=0,m=-2x=1,代入x²-2x+2+m=0,1-2+2+m=0,m=-1综上m=-2,m≥-1
参考下:
两边乘x(x-1)2(x-1)-m=x(x-1)+x2x-2-m=x²-x+xx²-2x+2+m=0原方程无解有两种情况一个是x²-2x+2+m=0无解则判别式小于04-4(2+m)-1一个是增根,则公分母x(x-1)=0x=0,x=1x=0,代入x²-2x+2+m=0,2+m=0,m=-2x=1,代入x²-2x+2+m=0,1-2+2+m=0,m=-1综上m=-2,m≥-1