因式分解-9m²n+36mn-3n=

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因式分解-9m²n+36mn-3n=因式分解-9m²n+36mn-3n=因式分解-9m²n+36mn-3n=-9m²n+36mn-3n=-3n(3m²

因式分解-9m²n+36mn-3n=
因式分解-9m²n+36mn-3n=

因式分解-9m²n+36mn-3n=
-9m²n+36mn-3n
=-3n(3m²-12m+1)