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A rectangular swimming pool is to be built with an area of 1800 square feet. The...

A rectangular swimming pool is to be built with an area of 1800 square feet. The owner wants 5-foot-wide decks on either side and 10-foot-wide decks at the two ends. Find the area (in sq. feet) of the smallest piece of property on which the pool can be built satisfying these conditions.

          Given: xy=1800

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