Hi im a bit stuck on this.

I know the first term is 2, and i just have to cube it, but i was confused as i thought the 5 on the top means the sum up to the fifth term. If i do this, i get

:

$\displaystyle 2^3 + 3^3 + 4^3 + 5^3 + 6^3$

Which equals 440. However i checked the answer and it said 224, which is basicly what i did but without the $\displaystyle 6^3$ at the end. Anyway i was just wondering if the answer book is right, or if im right because there have been a few mistakes in the answer booklet so far.