解方程:9(x-1)^2=1/81
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 08:24:08
![解方程:9(x-1)^2=1/81](/uploads/image/z/5251366-46-6.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A9%28x-1%29%5E2%3D1%2F81)
解方程:9(x-1)^2=1/81
解方程:9(x-1)^2=1/81
解方程:9(x-1)^2=1/81
9(x-1)^2=1/81
3(x-1)=±1/9
x-1=±1/27
x=1±1/27
9(x-1)^2=1/81
(x-1)²=1/729
x-1=±1/27
x1=28/27, x2=26/27
9(x-1)^2=1/81
(x-1)^2=1/729
x-1=1/27或x-1=-1/27
x=28/27或 x=26/27
9(x-1)²=1/81
3²(x-1)²=(1/9)²
3(x-1)=±1/9
x-1=±1/27
x=1±1/27
x1=28/27
x2=26/27
(x-1)^2=1/81*1/9
(x-1)=1/27或-1/27
所以X=28/27或X=26/27