Algebra 1 - Functions and Sequences

Question

Write the first four terms of the sequence.

f(n) = (n-1) (n-2)

please can someone help?

Answer 1

The first 4 terms mean set n=1, n= 2, n= 3, and n=4:

f(n) = (n-1)(n-2)

f(1) = (1-1)(1-2) = (0)·(-1) = 0

f(2) = (2-1)(2-2) = (1)·(0) = 0

f(3) = (3-1)(3-2) = ______

f(4) = _____

Can you do f(3) and f(4)?