解析3t²-1-6t=03(t²-2t)=13((t-1)²-1)=13(t-1)²-3=13(t-1)²=4(t-1)²=4/3t-1=2√3/3或-2√3/3t=2√3/3+1或-2√3/3+1 希望对你有帮助学习进步O(∩_∩)O谢谢
3t²-6t-1=0t=6±√36+12/6t=1±2√3/3
