(5m的3次方n²-6m²)÷(3m)

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(5m的3次方n²-6m²)÷(3m)(5m的3次方n²-6m²)÷(3m)(5m的3次方n²-6m²)÷(3m)原式=5m³n&

(5m的3次方n²-6m²)÷(3m)
(5m的3次方n²-6m²)÷(3m)

(5m的3次方n²-6m²)÷(3m)
原式=5m³n²÷3m-6m²÷3m
=(5/3)m²n²-2m
=m[(5/3)mn²-2]