作业帮解方程：x-12=[x-(x-12)]/(x-12)
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 00:03:31
![解方程：x-12=[x-(x-12)]/(x-12)](/uploads/image/z/585985-49-5.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9Ax-12%3D%5Bx-%28x-12%29%5D%2F%28x-12%29)
解方程：x-12=[x-(x-12)]/(x-12)
解方程：x-12=[x-(x-12)]/(x-12)
解方程：x-12=[x-(x-12)]/(x-12)
设y=x-12
y=(y+12-y)/y
=12/y
y²＝12
y=2√3
x-12=2√3
x=12+2√3
x-12=[x-(x-12)]/(x-12)
(x-12)(x-12)=12
x-12=±2√3
x=12±2√3
经检验x=12±2√3是原方程的解。