Question

sum 5k^2 k=1 to n+3

Answer 1

\[\large\sum_{k=1}^{n+3}5k^2\]

Answer 2

they are asking me to expand it

Answer 3

what is n?

Answer 4

I got 5/6 (2n^3 = 21 n^2 +73n+84) is this right?

Answer 5

it doesnt say its just has the problem and says 2. Assignment 2: On Properties of the summation
notation

Answer 6

and it starts with that as the first question

Answer 7

i dont understand the n bit

Answer 8

Its okay thank you