因式分解 3a-6ab = = = m的平方n-2mn的平方 = = =

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因式分解 3a-6ab = = = m的平方n-2mn的平方 = = =

因式分解 3a-6ab = = = m的平方n-2mn的平方 = = =
因式分解 3a-6ab = = = m的平方n-2mn的平方 = = =

因式分解 3a-6ab = = = m的平方n-2mn的平方 = = =
3a-6ab = 3a(1-2b)
m的平方n-2mn的平方 =mn(m-2n)