因式分解:(1)6m^2n-15n^2m+30m^2n^2 (2)-9m^3n^2+15

m^2-3mn
2025-04-06 19:17:20
推荐回答(1个)
回答1:

6m²n-15n²m+30m²n²
=3mn(2m-5n+10mn)

-9m³n²+15m²-3mn
=-3m(3m²n²-5m+n)