SOLUTION: The area of a rectangular serving tray is given by the trinomial 3x2+17x−56. The tray's width is 3x−7. What is the length of the tray?
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Question 1032577: The area of a rectangular serving tray is given by the trinomial 3x2+17x−56. The tray's width is 3x−7. What is the length of the tray?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
We can either long divide one by the other or merely factor
3x^2 + 17x - 56 = (3x - 7)(x + 8)
so that the length must be x + 8.
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