化简:\frac{2a}{a-9}-\frac{1}{a-3}
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/31 00:26:25
![化简:\frac{2a}{a-9}-\frac{1}{a-3}](/uploads/image/z/15112581-69-1.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%5Cfrac%7B2a%7D%7Ba-9%7D-%5Cfrac%7B1%7D%7Ba-3%7D)
x){3{fŤ%&W%V'ZB qMR>*lH1[D}
!6քF%y`XT8#]DDmKLY
9PNYN 1 5`
化简:\frac{2a}{a-9}-\frac{1}{a-3}
化简:\frac{2a}{a-9}-\frac{1}{a-3}
化简:\frac{2a}{a-9}-\frac{1}{a-3}
\frac{2a}{a-9}-\frac{1}{a-3}
=2a/(a-9)-1/(a-3)
=[2a(a-3)-(a-9)]/(a-9)(a-3)
=[2a^2-6a-a+9]/(a-9)(a-3)
=(2a^2-7a+9)/(a-9)(a-3)