Question

(a+2) (a^2-a-3); (a-2)*(a^2-a-3);

Answer 1

Ответ:

1)

(a+2)(a²-a-3)

a(a²-a-3)+2(a²-a-3)

a³-a²-3a+2a²-2a-6

a³+a²-5a-6

2)(a-2)*(a²-a-3)

a(a²-a-3)-2(a²-a-3)

a³-a²-3a-2a²+2a+6

a³-3a²-a+6