(x-10)(x2+10x+100) помогите пжж

Question

(x-10)(x2+10x+100) помогите пжж

Answer 1

(x-10)(2x+10x+100)=
2x(в квадрате)+10x+100x-20x-100x-1000=
2x(в квадрате)-10x-1000