what are the first four terms represented by n(n-2)-3
m? Are you studying "Mary Had a Little Lamb"? Math? What This looks like math, but I can't know unless you abandon text-speak code and use English.
c'mon -- just start plugging in values for n:
n=1: 1(1-2)-3 = -4
n=2: 2(2-2)-3 = -3
n=3: 3(3-2)-3 = ...
and so on
To find the first four terms represented by the expression n(n-2)-3, we need to substitute different values for n and simplify the expression.
Let's substitute n = 1:
1(1-2)-3 = 1*(-1) - 3 = -1 - 3 = -4
Now, let's substitute n = 2:
2(2-2)-3 = 2*(0) - 3 = 0 - 3 = -3
Substituting n = 3:
3(3-2)-3 = 3*(1) - 3 = 3 - 3 = 0
And finally, let's substitute n = 4:
4(4-2)-3 = 4*(2) - 3 = 8 - 3 = 5
Therefore, the first four terms represented by the expression n(n-2)-3 are:
-4, -3, 0, 5