gardener has 480 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it does not need any fencing. What dimensions would gurantee that the garden has the greatest possible area? a) shorter side: ___ feet b) longer side: _____ feet c) greatest possible area: ____ feet2 (square feet)

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.