Question

Решите раскрывая скобки (5-а)(25+5а+а^2)

Answer 1

(5-a)(25+5a+a^2)=125+25a+5a^2-25a-5a^2-a^3=125-a^3.

Answer 2

(5-a)(25+5a+a²)=125-a^3