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10. 若 k<0,則 x2+kx+12 使用十字交乘法,有可能得到下列哪一個因式?(A) x+2 (B) x+3 (C) x+1 (D) x-6。
問題詳情
10. 若 k<0,則 x2+kx+12 使用十字交乘法,有可能得到下列哪一個因式?
(A) x+2
(B) x+3
(C) x+1
(D) x-6。
參考答案
答案:D
難度:適中0.6
統計:A(0),B(2),C(0),D(3),E(0)
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