A gardener has 100 meters of fencing to enclose two adjacent rectangular gardens. The gardener wants the enclosed area to be 350 square meters. What dimensions should the gardener use to obtain this area?
4x + 3y = 100
2xy = 350
2x(100-4x)/3 = 350
8x^2 - 200x + 1050 = 0
now solve for x as usual, and then get y