Question

Optimization: An open box is to be made from a 3-foot by 4-foot rectangular piece of material by cutting equal squares from each corner and turning up the sides. Find the volume of the largest box that can be made in this manner.

Answer 1

http://www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/maxminsoldirectory/MaxMinSol.html#SOLUTION 5

Answer 2

its solution 5 halfway down the page

Answer 3

thanks. :)