Hi, I need help with this question.

'ask 10 'ou plan to make a simple, open topped box from a piece of sheet metal by cutting | square - of equal size - from each corner and folding up the sides as shown in the Iiagram: f i = 200mm and w = 150mm calculate: a} The value of x which will give the maximum volume b) The maximum volume of the box :omment of the value obtained in part b