What are the first four terms of the sequence represented by the expression n(n - 2) - 3?
just plug in
n = 1
n = 2
n = 3
n = 4 and evaluate.
e.g. n = 3
value is 3(3-2) - 3
= 3(1) - 3
= 0
Thanks
not what i was looking for
It's B
To find the first four terms of a sequence represented by the expression n(n - 2) - 3, we need to substitute the values of n from 1 to 4 into the expression and evaluate them.
Let's calculate the terms one by one:
For n = 1:
n(n - 2) - 3 = 1(1 - 2) - 3 = -2 - 3 = -5
For n = 2:
n(n - 2) - 3 = 2(2 - 2) - 3 = 0 - 3 = -3
For n = 3:
n(n - 2) - 3 = 3(3 - 2) - 3 = 3 - 3 = 0
For n = 4:
n(n - 2) - 3 = 4(4 - 2) - 3 = 8 - 3 = 5
Therefore, the first four terms of the sequence are:
-5, -3, 0, 5