A farmer wants to build a rectangular pen and then divide it with two interior fences. The total area inside of the pen will be
A farmer wants to build a rectangular pen and then divide it with two interior fences. The total area inside of the pen will be squaremeterssquaremeters The exterior fencing costs $permeter$permeter and the interior fencing costs $permeter$permeter
Find the dimensions of the pen that will minimize the cost.