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解分式方程xx+1=1−2x−1x2−1时,去分母正确的是()A.x(x-1)=1-2x-1B.x(x-1)=1-(2x-1)C.x(x-1)=x2-1-2x-1D.x(x-1)=x2-1-(2x-1)

题目详情
解分式方程
x
x+1
=1−
2x−1
x2−1
时,去分母正确的是(  )

A.x(x-1)=1-2x-1
B.x(x-1)=1-(2x-1)
C.x(x-1)=x2-1-2x-1
D.x(x-1)=x2-1-(2x-1)
x
x+1
=1−
2x−1
x2−1
时,去分母正确的是(  )

A.x(x-1)=1-2x-1
B.x(x-1)=1-(2x-1)
C.x(x-1)=x2-1-2x-1
D.x(x-1)=x2-1-(2x-1)
x
x+1
xxx+1x+1
2x−1
x2−1
2x−12x−1x2−1x2−1x2−1x2−12−1



2
2
▼优质解答
答案和解析
分式方程去分母得:x(x-1)=x22-1-(2x-1).
故选D