What is the product? 4n/4n-4•n-1/n+1

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

Can someone answer this question for me