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18 December, 12:03

A rectangular bench top is a wooden plank with an area of 8 square feet. The width of the bench top is 2 feet less than its length.

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  1. 18 December, 14:59
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    area of rectangle = L x w

    area = 8 sq ft

    w = L-2

    so 8 = L * L-2

    8 = l^2-2l

    l^2 - 2l-8 = 0

    (l-4) (l+2) = 0

    Length = 4 feet

    Width = 2 feet
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