Problema Solution
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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+6xy-4y^2 inches. Write an algebraic expression for the area of such a whiteboard, simplify it and include correct units with your solution.
Answer provided by our tutors
Area = ( x + y )( x^2 + 6xy - 4y^2 )
= x^3 + 7(x^2)y + 2 x(y^2) - 4 y^3