A rectangular box, with an open top, is to be constructed from a piece of cardboard that measures 48 cm by 30 cm .Squares of equal size will be cut from the corners of the cardboard, as indicated by the shading in the diagram. The sides will then be folded along the dotted lines to form the box.diagram not to scaleThe volume of the box, in cubic centimetres, can be modelled by the function \( V(x)=(48-2 x)(30-2 x)(x)\), for \(0