
(m+2-m-2分之5)÷m-2分之3m-m的²?
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猜[m+2-5/(m-2)]÷(3m-m^2)/(m-2)
=(m^2-4-5)/(m-2)×(m-2)/(3m-m^2)
=(m+3)(m-3)/[m(3-m)]
=-(m+3)/m.
=(m^2-4-5)/(m-2)×(m-2)/(3m-m^2)
=(m+3)(m-3)/[m(3-m)]
=-(m+3)/m.
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(m+2-m-2分之5)÷m-2分之3m-m²
= (0-m-1/2) ÷ (m-3m+m²)
= (-m-1/2) ÷ (m-m²)
= (m+1/2) ÷ (m²-m)
= 1/2(m+1) ÷ m(1-m)
= 1/2(m+1) ÷ (-m)(m-1)
= -1/2(m+1) ÷ (m-1)m
= -1/2(m+1) ÷ m(m-1)
= -1/2m(m+1) ÷ m(m-1)
= -1/2(m+1) ÷ (m-1)
答案为:-1/2(m+1) ÷ (m-1)。
= (0-m-1/2) ÷ (m-3m+m²)
= (-m-1/2) ÷ (m-m²)
= (m+1/2) ÷ (m²-m)
= 1/2(m+1) ÷ m(1-m)
= 1/2(m+1) ÷ (-m)(m-1)
= -1/2(m+1) ÷ (m-1)m
= -1/2(m+1) ÷ m(m-1)
= -1/2m(m+1) ÷ m(m-1)
= -1/2(m+1) ÷ (m-1)
答案为:-1/2(m+1) ÷ (m-1)。
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