Possible Duplicate:
why is $\sum\limits_{k=1}^{n} k^m$ a polynomial with degree $m+1$ in $n$
I'm searching for a way to find the partial sum of a polynomial, is there any way of doing this formulaically instead of just guessing and checking?
For example...
$$\sum_{x=1}^n {x^{2}}=?$$
or...
$$\sum_{x=1}^n (4x^2+7x+2)=?$$