Question

given a sequence {a sub n}n=0 to infinity with
a sub n= n^2 -4n,
find the first five terms.

Answer 1

I understand nothing from the task !

Answer 2

i just have to find the first five number of the sequence and the equation is \[\sum_{x=0}^{\infty} \]f(x)=x^2-4x with

Answer 3

LOL ... honestly I don't know these kind of tasks. I can't help. Sorry ! :(

Answer 4

0,-3,-4,-3,0