I have two dogs that do not like each other. Using 120 feet of fencing, I would like to create two pens with equal area. To do this, I would first create a rectangular pen, then I would run one piece of fencing down the center (front to back) to create two equal size pens. Let x be the width of each pen, and y be the depth of the pen. DogPen To maximize the size of each pen, what would x have to be