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2. 若方程式 x 2 +ax+b=0 的解為 x=2 與 3,求(a , b)=?(A)(5 , -6) (B)(-5 , 6) (C)(5 , 6) (D)(-5 , -6)。
問題詳情
2. 若方程式 x 2 +ax+b=0 的解為 x=2 與 3,求(a , b)=?
(A)(5 , -6)
(B)(-5 , 6)
(C)(5 , 6)
(D)(-5 , -6)。
參考答案
答案:B
難度:適中0.666667
統計:A(0),B(4),C(2),D(0),E(0)
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