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 460424: 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 ankor@dixie-net.com(22740) About Me  (Show Source):
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FOIL (x+4y)*(x-4y = x^2 + 4xy - 4xy - 16y^2, which is: x^2 - 16y^2 sq/cm