Question

Find the first 3 terms when the nth term is n(n+2)

Answer 1

3, 8, 15

Explanation:

Put the numbers 1, 2, and 3 where n is and do the evaluation for each of those values.

n=1: 1(1+2) = 3

n=2: 2(2+2) = 8

n=3: 3(3+2) = 15

The first three terms are 3, 8, 15.