# Calc w/ Business

posted by
**Ben !!!HELP!!!**
.

I have to determine the price that needs to be charged to obtain the largest revenue.

q=-p^2+33p+9 so

R=p(-p^2+33p+9) or =-p^3+33p^2+9p

I then need to take the derivative

R'=-3p^2+66p+9

Now I somehow need to solve for p to determine my price to obtain my largest revenue. How do I do this.