The nth term of a sequence is n²+20

Work out the first three terms of the sequence

21, 24, 29

Step-by-step explanation:

Replace n with 1, 2, and 3, and do the arithmetic.

first term = 1² + 20 = 21

second term = 2² + 20 = 24

third term = 3² + 20 = 29

The first three terms are 21, 24, 29.