Question 629194
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+y inches, the other side should be x^2-3xy+7y^2 inches. WRITE an algebraic expression for the area of such a whiteboard, SIMPLIFY it, and INCLUDE correct UNITS with your solutions.
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Area = L*W
{{{Area = (x+y)*(x^2-3xy+7y^2)}}}
{{{Area = x^3 - 2x^2y + 4xy^2 + 7y^3}}} sq inches
No "simplification" is possible.