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15 September, 20:20

The area of a rectangular fountain is (x^2+12+20) square feet. A 2-foot walkway is built around the fountain. Find the dimensions of the outside border of the walkway

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  1. 15 September, 20:43
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    Area=legnth times width

    factor

    what 2 numbes multiply to 20 and add to 12

    10 and 2

    (x+2) (x+10)

    2 foot walkway is increase legnth and width by 2

    area=LW

    area = (x+2) (x+10)

    increase each by 2

    area = (x+4) (x+12)

    the outside border is x+4 by x+12
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