David wants to hang a mirror in his room. The mirror and frame must have an area of 8 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?
2x2 + 14x - 2 = 0
3x2 + 10x - 8 = 0
4x2 + 10x - 2 = 0
x2 + 7x - 8 = 0
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