用开平方的方法求x的值 x²=0.04 4(x-1)²=324 9x²-¼=0 x²=0.04 4(x-1)²=324 9x²-¼=0
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 12:45:10
![用开平方的方法求x的值 x²=0.04 4(x-1)²=324 9x²-¼=0 x²=0.04 4(x-1)²=324 9x²-¼=0](/uploads/image/z/15154743-39-3.jpg?t=%E7%94%A8%E5%BC%80%E5%B9%B3%E6%96%B9%E7%9A%84%E6%96%B9%E6%B3%95%E6%B1%82x%E7%9A%84%E5%80%BC+x%26%23178%3B%3D0.04+4%EF%BC%88x-1%EF%BC%89%26%23178%3B%3D324+9x%26%23178%3B-%26%23188%3B%3D0+x%26%23178%3B%3D0.04+4%EF%BC%88x-1%EF%BC%89%26%23178%3B%3D324+9x%26%23178%3B-%26%23188%3B%3D0)
用开平方的方法求x的值 x²=0.04 4(x-1)²=324 9x²-¼=0 x²=0.04 4(x-1)²=324 9x²-¼=0
用开平方的方法求x的值 x²=0.04 4(x-1)²=324 9x²-¼=0
x²=0.04 4(x-1)²=324 9x²-¼=0
用开平方的方法求x的值 x²=0.04 4(x-1)²=324 9x²-¼=0 x²=0.04 4(x-1)²=324 9x²-¼=0
x²=0.04
x=±√0.04
x=±0.2
x1=0.2
x2=-0.2
4(x-1)²=324
(x-1)²=324/4
(x-1)²=81
x-1=±√81
x-1=±9
x-1=9 或 x-1=-9
x1=10
x2=-8
9x²-¼=0
9x²=¼
x²=¼÷9
x²=1/36
x=±√(1/36)
x=±1/6
x1=1/6
x2=-1/6