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8m

Let the width of the table be w; then its length is w + 2.

Area = length x width

80 = (w + 2)w

w2 + 2w - 80 = 0

(w + 10)(w - 8) = 0

w = -10 or 8

As the width must be positive, it is 8m.

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15y ago

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