1. The problem statement, all variables and given/known data A box with a square base is to have an open top. The area of the material in the box is 60 sr in. What are the dimensions when the volume is maximized? 2. Relevant equations 3. The attempt at a solution A=x2+4xy V=x2y x2+4xy=60 4xy=60-x2 y=(60-x2)/4x Where do I go from here?