A poster must have a printed area of 280 square inches. The top and bottom margins are 6 inches each and the side margins are 8 inches each. Suppose the bottom side-length of the printed area is x. Write down the expression of x that we need to minimize, if we are to find the dimensions of such a poster with the smallest area A. 280 A. (x + 6) + 8) B. (x – 8) (250 – 6) 280 C. (x + 12) + 16) 280 D. (* + 16) + 12) E. (x – 16) (0 – 12) 280 O A O B O C D O E

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