Cho tam thức bậc hai được liệt kê ở một trong bốn...
Câu hỏi: Cho tam thức bậc hai được liệt kê ở một trong bốn phương án A, B, C, D có bảng xét dấu như hình bên dưới. Hỏi đó là tam thức bậc hai nào?![](data:image/png;base64,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)
A. \(y={{x}^{2}}+2x-3.\)
B. \(y=-{{x}^{2}}-2x+3.\)
C. \(y={{x}^{2}}-4x+3\)
D. \(y=-{{x}^{2}}+4x-3.\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề ôn tập Chương 4 Đại số lớp 10 năm 2021 Trường THPT Ngô Quyền