1. $\sqrt[3]{4x+1}+\sqrt[3]{9x+4}=3-3x$
2. $\sqrt{3x+1}+\sqrt{4x+4}=3x^{2}-x+3$
3. $\sqrt{x^{2}+12}+5=3x+\sqrt{x^{2}+5}$
4. x4+2x3+2x2-2x+1=(x3+x)$\sqrt{\frac{1-x^{2}}{x}}$
5. 2x5+5x-1=7$\sqrt{x^{3}-1}$
6. x4n+$\sqrt{x^{2n}+2016}=2016$
- Zeref yêu thích