L = W + 23
L * W = 420 ... (W + 23) * W = 420 ... W^2 + 23 W - 420 = 0
(W + 35) (W - 12) = 0
W = 12
The length of a swimming pool is 23 units more than its width.if the area is 420 sq.units, what are their dimensions?
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