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1,$\left\{\begin{matrix} x^{2}(y+1)=6y-2 & \\ x^{4}y^{2}+2x^{2}y^{2}+y(x^{2}+1)=12y^{2}-1 & \end{matrix}\right.$

2,$\left\{\begin{matrix} y=-x^{3}+3x+4 & \\ x=2y^{3}-6y-2 & \end{matrix}\right.$

3,$\left\{\begin{matrix} (1+x)(1+x^{2})(1+x^{4})=1+y^{7} & \\ (1+y)(1+y^{2})(1+y^{4})=1+x^{7} & \end{matrix}\right.$

4,$\left\{\begin{matrix} x^{2}y+y^{3}=x^{4}+x^{6} & \\ (x+2)\sqrt{y+1}=(x+1)^{2} & \end{matrix}\right.$

1,$\left ( \frac{8x^{3}+2011}{2012} \right )^{3}= 4024x-2011$

2,$x^{2}-x-2011\sqrt{1+16088x}=2011$

Giải bất phương trình

$\left ( x^{2} -3x\right )\sqrt{x^{3}-3x-2}\geqslant 0$