81P/1.(1)110(2)-200/2.3/3.1/4.2/5.1/6.5x+15/7.(x+4)(x-5)/8.3/9.k=5또는k=-3/10.1155/11.-2x1/12.최대값7,최소값-7/13.1/83P/1.2/2.1/3.1/4.10/5(1)(a-2b)(a-
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