Question

(u^2+3u+1)(u^3+u^2+u)​

Answer 1

Answer:

=u^2(u^3+u^2+u)+3u(u^3+u^2+u)+1(u^3+u^2+u)

=u^5+u^4+u^3+3u^4+3u^3+3u^2+u^3+u^2+u

=u^5+4u^4+5u^3+4u^2+u Answer

Answer 2

$30u + 6u$

30u +6u