化简 (m²-1)÷(m+1)-(m²-m³)÷(m²-m)
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化简 (m²-1)÷(m+1)-(m²-m³)÷(m²-m)
化简 (m²-1)÷(m+1)-(m²-m³)÷(m²-m)
化简 (m²-1)÷(m+1)-(m²-m³)÷(m²-m)
(m+1)(m-1)÷(m+1)-m²(1-m)÷m(m-1)
=(m-1)+m
=m-1+m
=2m-1
=(m+1)(m-1)÷(m+1)+m²(m-1)÷m(m-1)
=m-1+m
=2m-1
(m²-1)÷(m+1)-(m²-m³)÷(m²-m)
=(m-1)+m
=2m-1