因式分解 3m^2n-12mn+12n

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因式分解3m^2n-12mn+12n因式分解3m^2n-12mn+12n因式分解3m^2n-12mn+12n3m^2n-12mn+12n=3n(m^2-4m+4)=3n(m-2)^23m^2n-12m

因式分解 3m^2n-12mn+12n
因式分解 3m^2n-12mn+12n

因式分解 3m^2n-12mn+12n
3m^2n-12mn+12n
=3n(m^2-4m+4)
=3n(m-2)^2

3m^2n-12mn+12n
=3n(m^2-4m+4)
=3n(m-2)^2

3n(m-2)²