2n(n+2)
2n(n+1)
n(n+2)
2n(2n+2)
need to find the one equivalent to n+3n+2n(squared) using distributive property
$$n+3n+2n^2 \\= n(1+3+2n) \\= n ( 4+2n ) \\= n * 2(2+n) \\=2n(n+2)$$
the answers in the one before are the options. sorry!
nevermind it wasnt an answer