用配方法解方程3x²=6x-2x²+px+q=0(p²-4q≥0)1/4x²-1/2x=1x²-2/3x-1/9=0
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 13:03:04
![用配方法解方程3x²=6x-2x²+px+q=0(p²-4q≥0)1/4x²-1/2x=1x²-2/3x-1/9=0](/uploads/image/z/2548107-27-7.jpg?t=%E7%94%A8%E9%85%8D%E6%96%B9%E6%B3%95%E8%A7%A3%E6%96%B9%E7%A8%8B3x%26%23178%3B%3D6x-2x%26%23178%3B%2Bpx%2Bq%3D0%EF%BC%88p%26%23178%3B-4q%E2%89%A50%EF%BC%891%2F4x%26%23178%3B-1%2F2x%3D1x%26%23178%3B-2%2F3x-1%2F9%3D0)
用配方法解方程3x²=6x-2x²+px+q=0(p²-4q≥0)1/4x²-1/2x=1x²-2/3x-1/9=0
用配方法解方程
3x²=6x-2
x²+px+q=0(p²-4q≥0)
1/4x²-1/2x=1
x²-2/3x-1/9=0
用配方法解方程3x²=6x-2x²+px+q=0(p²-4q≥0)1/4x²-1/2x=1x²-2/3x-1/9=0
3x²=6x-2
3x²-6x+3=1;
3(x-1)²=1;
x-1=±√3/3;
x=1±√3/3;
x²+px+q=0(p²-4q≥0)
(x+p/2)²=-q+p²/4;
x+p/2=±√(p²-4q)/2;
x=-p/2±√(p²-4q)/2;
1/4x²-1/2x=1
x²/4-x/2+1/4=5/4;
(x/2-1/2)²=5/4;
x/2-1/2=±√5/2;
x=1±√5;
x²-2/3x-1/9=0
x²-2x/3+1/9=2/9;
(x-1/3)²=2/9;
x-1/3=±√2/3;
x=1/3±√2/3;
您好,很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,如果满意记得采纳
如果有其他问题请采纳本题后另发点击向我求助,答题不易,请谅解,谢谢.
祝学习进步