代数 - 2026 进行中

科目: 代数
级别: IX
类别: 大学生
测试题目: 英语
问题示例: The numbers 2 and 3 are the roots of a quadratic equation. Which equation has exactly these roots? x² − 5x + 6 = 0, x² + 5x + 6 = 0, x² − 6x + 5 = 0, x² + 6x − 5 = 0