B
barbie_girl_1996
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
[TEX]\sqrt{3.x^2+5.x+28} +\sqrt{4.x^2-24.x+45} = -5 - x^2 +6.x[/TEX]
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