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To allow for more dancers the country club can increase the dimensions of the dance floor in 5 foot increments in either direction ; however the committee would like to maintain a square shape. Let n represent the number of 5'increases to the length pf each side of the dance floor. write an expression in terms of n for the additional square feet of dance floor and then use algebraic identities to find a diffrent but equivalent expression for the additional area.

  • Math -

    total area= (l+5n)^2

    original area= l^2

    new area= total area-original= 10*L*n+ 25n^2

    check that with a drawing.

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