Please show work

Question 5 A box with a square base and open top must have a volume of 364500 cm. 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. A( z) = Next, find the derivative, A' (x). A'(2) = The critical value is x = The function is Select an answer @ until the critical value, and Select an answer @ after, so the critical value corresponds to a local Select an answer . Check