what were the first four terms of the sequence represented by the expression n(n - 1) - 5
The first four terms of the sequence represented by the expression n(n - 1) - 5 can be found by plugging in the values of n from 1 to 4.
When n = 1, we have 1(1-1) - 5 = -5
When n = 2, we have 2(2-1) - 5 = -3
When n = 3, we have 3(3-1) - 5 = 4
When n = 4, we have 4(4-1) - 5 = 11
Therefore, the first four terms of the sequence are -5, -3, 4, and 11.