分式m-m²分之m²-2m+1约分后的结果是( )A.(m+1)分之(m-1 ) B.-(m(1+m)分之1-m)C.(m(m+1))分之m D.m分之(1-m)
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![分式m-m²分之m²-2m+1约分后的结果是( )A.(m+1)分之(m-1 ) B.-(m(1+m)分之1-m)C.(m(m+1))分之m D.m分之(1-m)](/uploads/image/z/1124073-9-3.jpg?t=%E5%88%86%E5%BC%8Fm-m%26%23178%3B%E5%88%86%E4%B9%8Bm%26%23178%3B-2m%2B1%E7%BA%A6%E5%88%86%E5%90%8E%E7%9A%84%E7%BB%93%E6%9E%9C%E6%98%AF%EF%BC%88+%29A.%EF%BC%88m%2B1%EF%BC%89%E5%88%86%E4%B9%8B%EF%BC%88m-1+%EF%BC%89++B.-%28m%281%2Bm%29%E5%88%86%E4%B9%8B1-m%29C.%EF%BC%88m%28m%2B1%29%EF%BC%89%E5%88%86%E4%B9%8Bm++D.m%E5%88%86%E4%B9%8B%EF%BC%881-m%EF%BC%89)
分式m-m²分之m²-2m+1约分后的结果是( )A.(m+1)分之(m-1 ) B.-(m(1+m)分之1-m)C.(m(m+1))分之m D.m分之(1-m)
分式m-m²分之m²-2m+1约分后的结果是( )
A.(m+1)分之(m-1 ) B.-(m(1+m)分之1-m)
C.(m(m+1))分之m D.m分之(1-m)
分式m-m²分之m²-2m+1约分后的结果是( )A.(m+1)分之(m-1 ) B.-(m(1+m)分之1-m)C.(m(m+1))分之m D.m分之(1-m)
原式=m(1-m)分之(1-m)²
=m分之(1-m)
选D