N
nguyenlinh0509
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
giai phuong trinh :
a,[TEX](x^2-x)^2-2=x^2-x[/TEX]
b,[TEX]x(x+1)(x-1)(x+2)=24[/TEX]
b-(b-(b-(b-(b-(hoi kho day
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|![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
chú ý latex
a,[TEX](x^2-x)^2-2=x^2-x[/TEX]
b,[TEX]x(x+1)(x-1)(x+2)=24[/TEX]
b-(b-(b-(b-(b-(hoi kho day
chú ý latex
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