The length of the side of a rectangular desk is given by 9x - 2y cm.  The lenght of the front is given by 9x + 2y cm.  What is an algebraic expression for the area of the top of the rectangular desk?

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Cassandra -The area of a rectangle is simply:Area = side * lengthSo, for this problem multiply (9x - 2y) times (9x + 2y) and you will have your answer.Hope that helps