. This first example is one you may have seen in precalc. square sheet of cardboard is 3 meters long on each side. You are oing to cut out squares from each corner so that you can fold up the des to make an open box. 3 . Show that the volume of the resulting box is: 4x²-12₂² +9x² - Find the derivative of the volume with respect to x, set that erivative equal to zero and solve for x. What is the domain of interest? And what volume do we get if we use the endpoints? I I L 3 I