maximum of (1 + .1N - .05 y(y+1))*(1+.15*y)^2 over y > 0 and y < sqrt(N) and N > 0

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.