-40m^3n+25mn^3+195m^2n^2

热心网友

-40m^3n+25mn^3+195m^2n^2 =-5mn(8m^2-5n^2-39mn)=-5mn(8m+n)(m-5n)

热心网友

-40m^3n+25mn^3+195m^2n^2=5mn*(5n^2+39mn-8m^2)=5mn*(5n-m)*(n+8m)

热心网友

分解因式？-5mn(8m+n)(m-5n)