Cho bảng xét dấu:
Câu hỏi: Cho bảng xét dấu: ![](javascript:void(0))
![](data:image/png;base64,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)
A. \(f\left( x \right) = 16x - 8\)
B. \(f\left( x \right) = - x - 2\)
C. \(f\left( x \right) = 8 - 4x\)
D. \(f\left( x \right) = 2 - 4x\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề kiểm tra HK2 môn Toán 10 Trường THPT Lê Hồng Phong năm 2018- 2019