Question

Математика!!! Помогите , подробно
(4a^2 + 3a +2) / (a^3 - 1) - (1) / (a^2 + a + 1)

Answer 1

(4a²+3a+2)/[(a-1)(a²+a+1)]-1/(a²+a+1)=
=(4a²+3a+2-a+1)/(a³-1)=(4a²+2a+3)/(a³-1)