Question

представте в виде многочленов
1) (а-2)3
2) (2у-3)3
3) (y+3)3
4) (3n-2m)3.

Answer 1

1) (а-2)3=3а+3×(-2)=3а-6
2) (2у-3)3=3×2у+3×(-3)=6у-9
3) (у+3)3=3у+3×3=3у+9
4) (3n-2m)3=3×3n+3×(-2m)=9n+-6m