SOLUTION: I know how to do these I really just need to be refreshed the question I am having trouble with is .5n(n+1)to the second power

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: I know how to do these I really just need to be refreshed the question I am having trouble with is .5n(n+1)to the second power      Log On


   

Question 128980:
I know how to do these I really just need to be refreshed the question I am having trouble with is .5n(n+1)to the second power
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
.5N(N+1)^2
.5N(N^2+2N+1)
.5N^3+N^2+.5N