問題詳情
2. 設a﹐b﹐c為實數﹐且二次多項式f (x) = ax(x - 1) + bx(x - 3) + c(x - 1)(x - 3)滿足f (0) = 6﹑f (1) = 2﹑f (3) = - 2﹒請問a + b + c等於下列哪一個選項﹖
(A)0
(B)
(C)1
(D)
(E) ﹒
2. 設a﹐b﹐c為實數﹐且二次多項式f (x) = ax(x - 1) + bx(x - 3) + c(x - 1)(x - 3)滿足f (0) = 6﹑f (1) = 2﹑f (3) = - 2﹒請問a + b + c等於下列哪一個選項﹖
(A)0
(B)