解分式方程3xx2-1+x2-13x=2时,可设3xx2-1=y,则原方程可化为整式方程是()A.y2+2y+1=0B.y2+2y-1=0C.y2-2y+1=0D.y2-2y-1=0-数学
A.y2+2y+1=0
B.y2+2y-1=0
C.y2-2y+1=0
D.y2-2y-1=0
题目简介
解分式方程3xx2-1+x2-13x=2时,可设3xx2-1=y,则原方程可化为整式方程是()A.y2+2y+1=0B.y2+2y-1=0C.y2-2y+1=0D.y2-2y-1=0-数学
题目详情
A.y2+2y+1=0
B.y2+2y-1=0
C.y2-2y+1=0
D.y2-2y-1=0
答案