Posted by **Laura** on Sunday, February 6, 2011 at 2:30pm.

A school designer wants to create a whiteboard with the optimal dimensions to enhance learning. It is determined that if one side of the whiteboard is x+2y inches, the other side should be x^2+6xy-5y^2 inches. Write an algebriac expression for the area of such a whiteboard, simplify it and use correct units with the solution.

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