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(2006•广东)用换元法解分式方程时,设,原方程可变形为A.y2+2y-3=0B.y2-...
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(2006•广东)用换元法解分式方程
时,设
,原方程可变形为( )
A.y
2+2y-3=0
B.y
2-3y+2=0
C.3y
2-y+2=0
D.y
2-2y+3=0
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