A box with a square base andopen topmust have a volume of 442368 cm3. We wish to find the dimensions of the box that minimize the amount of material used.

First, find a formula for the surface area of the box in terms of only x, the length of one side of the square base.

[Hint: use the volume formula to express the height of the box in terms of x.]

Simplify your formula as much as possible.

can anyone tell me what this equation is? );