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**Barthayn** 14. A rectangular field is to be enclosed on four sides and divided by another section of fence parallel tot he width using 4800m of fencing. What is the maximum area of the entire field? What are the dimensions of the field that maximums the area?

How would I even start this? I know that A = l x w. But other than that I have no idea. (Headbang) I thought it would be something like x (4800 -x) and then solve for x, but I don't think that will give me the correct answer. How do I do this question?