SweetCandy11

27/ $\left\{\begin{matrix} x+\sqrt{x(x^2-3x+3)}=\sqrt[3]{y+2}+\sqrt{y+3}+1 & \\ 3\sqrt{x-1}-\sqrt{x^2-6x+6}=\sqrt[3]{y+2}+1 & \end{matrix}\right.$

28/ $\left\{\begin{matrix} x^3-y^3-6y^2+3(x-5y)=14 & \\ \sqrt{3-x}+\sqrt{y+4}=x^3+y^2-5 & \end{matrix}\right.$

29/ $\left\{\begin{matrix} (1-y)\sqrt{x-y}+x=2+(x-y-1)\sqrt{y} & \\ 2y^2+4y+5x+1=(x-y+6)\sqrt{y(x^2+y+2)} & \end{matrix}\right.$

30/ $\left\{\begin{matrix} (1-y)\sqrt{x+y}+x+2y=2(x+y-1)\sqrt{y} & \\ y^2+2x+\sqrt[3]{y^4-2y^2}=4 & \end{matrix}\right.$

22/ $\left\{\begin{matrix} y^2+(y-3)x-4y=-3 & \\ \sqrt[3]{x-2}+\sqrt{2-y}=3 & \end{matrix}\right.$

23/ $\left\{\begin{matrix} y^2-x\sqrt{\frac{y^2+2}{x}}=2x-2 & \\ \sqrt{y62+1}+\sqrt[3]{2x-1}=1 & \end{matrix}\right.$

24/ $\left\{\begin{matrix} x^2+y^2=5 & \\ \sqrt{y-1}(x+y-1)=(y-2)\sqrt{x+y} & \end{matrix}\right.$

25/ $\left\{\begin{matrix} x^3+y^3+6xy=8 & \\ x^2+y^2=2x+y+14 & \end{matrix}\right.$

26/ $\left\{\begin{matrix} 4x^2+y-x-9=\sqrt{3x+1}+\sqrt{x^2+5x+y-8} & \\ x\sqrt{12-y}+\sqrt{y(12-x^2)}=12 & \end{matrix}\right.$

18/ $\left\{\begin{matrix} 2x^3+y(x+1)=4x^2 & \\ 5x^4-4x^6=y^2 & \end{matrix}\right.$

19/ $\left\{\begin{matrix} x^2+2y^2-3xy+x-y=0 & \\ x^2-3y+4y^2-1=0 & \end{matrix}\right.$

20/ $\left\{\begin{matrix} 2x^3+2x^2y-xy=y^2-x-y & \\ 2x^3-xy+x^2=4 & \end{matrix}\right.$

21/ $\left\{\begin{matrix} 2x^2-8xy^2-xy+4y^3=0 & \\ 16x^3+2x-8y^2+5=0 & \end{matrix}\right.$

12/ $\sqrt[3]{x+6}+x^2=7-\sqrt{x-1}$

14/ $3(\sqrt{x+7}+\sqrt{6-x})-2\sqrt{-x^2-x+42}-3=0$

15/  $(x^2+1)^2=5-x\sqrt{2x^2+4}$

17/ $\sqrt[3]{3-x^3}=2x^3+x-3$

5/ $14\sqrt{x+35 }+6\sqrt{x+1}=84+\sqrt{x^2+36x+35}$

6/ $\sqrt{x^2-3x+2}+\sqrt{x+3}=\sqrt{x-2}+\sqrt{x^2+2x-3}$

7/ $(x+1)\sqrt{x^2-2x+3}=x^2+1$

9/ $\sqrt{x+2}+x^2=\sqrt{3x-2}+x+2$