SOLUTION: Short Answer. The length of the side of a rectangular desk is given by x - 4y cm. The length of the front is given by x + 4y cm. What is an algebraic expression for the area of the

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Short Answer. The length of the side of a rectangular desk is given by x - 4y cm. The length of the front is given by x + 4y cm. What is an algebraic expression for the area of the      Log On


   



Question 460217: Short Answer. The length of the side of a rectangular desk is given by x - 4y cm. The length of the front is given by x + 4y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer.
Answer by richard1234(7193) About Me  (Show Source):
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Area = length*width = (x-4y)(x+4y). This resembles the difference of two squares so we conclude that the area is x^2 - 16y^2 square cm.