Partitioned Pen 2 A partitioned rectangular pen is to be created (see picture to the left). The total amount of fencing to be used for the pen is 180 ft. a. Write a function to express the area as a function of the side x. Solution: Since there are 4 sides with a length of :r, -'_-:c feet of fencing has been used so far. Since we Know that there is 180 feet of fencing, how much feet of fencing is left? Submit your answer as an expression in terms of :6 below