Question

write the first 4 terms whose nth term is an=n(n+3)​

Answer 1

Answer:

an = n(n+3)

a1 = 1(1+3) = 4

a2 = 2(2+3) = 2(5) = 10

a3 = 3(3+3) = 3(9) = 27

a4 = 4(4+3) = 4(7) = 28