Question

simplique a expressão:
3(a²+a+1)+ 2 (a²+2a-2)*(a²+3a-3)

Answer 1

3(a²+a+1)+ 2 (a²+2a-2)*(a²+3a-3)

3a²+3a+3+ 2(a^4+3a³-3a² +2a³+6a²-6a  -2a²-6a+6)

3a²+3a+3+ 2(a^4+5a³+a²-12a+6)

3a²+3a+3+2a^4+10a³+2a²-24a+12

2a^4+10a³+5a²-21a+15