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The area of a rectangular athletic field is represented by the expression 81y^2-16z^2 square meters. Write an algebraic expression to represent one possible set of dimensions(in the sense " length times width") of the athletic field. Include correct units with your solution.

  • algebra -

    all you need is a set of factors of the expression

    how about
    81y^2 - 16z^2 = (9y+4z)(9y-4z)

    make one the length, the other the width.

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