What are the first four terms of the sequence represented by the expression n(n-2)-3?
A. -5, -2, 1, 4
B. -4, -3, 0, 5
C. -3, 0, 3, 6,
D. -2, 0, 2, 4
To find the first four terms of this sequence, we can substitute in n = 1, 2, 3, and 4:
n(n-2)-3
When n = 1: 1(1-2)-3 = -4
When n = 2: 2(2-2)-3 = -3
When n = 3: 3(3-2)-3 = 0
When n = 4: 4(4-2)-3 = 5
Therefore, the first four terms of the sequence are -4, -3, 0, and 5.
The answer is B. -4, -3, 0, 5.