1、两边乘(x+1)(x-1)m-x+1=3x+34x=m-2x=(m-2)/42、x>0(m-2)/4>0m-2>0m>2分母不等于0x>0所以x≠1(m-2)/4≠1m-2≠4m≠6所以m>2且m≠6
