How do you solve this calculus problem?

Question

Write a formula for the transformations of m(n) = ½n²

1. y = M(n + 1)

Answer 1

y = M(n+1)
= ½(n+1)²
= ½(n²+2n+1)

I think that's the furthest you can go.
Hope this helps=)
apl

Answer 2

with a pencil , paper , and your brain