- 3 Tháng tám 2018
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- Trường Tiểu Học DIễn Thành
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
a) [tex]\sqrt{3x^2-7x+9}-\sqrt{x-2}=\sqrt{3x^2-5x-1}-\sqrt{x^2+3x+13}[/tex]
b) [tex]4x^2+3x+3=4x\sqrt{x+3}+2\sqrt{2x-1}[/tex]
c) [tex]4\sqrt{x+3}-\sqrt{x-1}=x+7[/tex]
d) [tex]2x\sqrt{x^2-x+1}+4\sqrt{3x+1}=2x^2+2x+6[/tex]
e) [tex]\sqrt{3x^2-12x+21}+\sqrt{5x^2+20x-24}=-2x^2+8x-3[/tex]
b) [tex]4x^2+3x+3=4x\sqrt{x+3}+2\sqrt{2x-1}[/tex]
c) [tex]4\sqrt{x+3}-\sqrt{x-1}=x+7[/tex]
d) [tex]2x\sqrt{x^2-x+1}+4\sqrt{3x+1}=2x^2+2x+6[/tex]
e) [tex]\sqrt{3x^2-12x+21}+\sqrt{5x^2+20x-24}=-2x^2+8x-3[/tex]