\(\begin{cases}2x^3-4x^2+3x-1=2x^3\left(2-y\right)\sqrt{3-2y}\\\sqrt{x+2}=\sqrt[3]{14-x\sqrt{3-2y}}+1\end{cases}\)
\(\begin{cases}2\sqrt{x^2+3x+2}-\sqrt{x+1}=2y\sqrt{y^2+1}+9-y-6y^2\\\sqrt{x^2+3x+2}+3\sqrt{x+1}=y\sqrt{y^2+1}-6+3y+4y^2\end{cases}\)
\(\begin{cases}x^2-y-1=2\sqrt{2x-1}\\y^3-8x^3+3y^2+4y-2x+2=0\end{cases}\)
\(\begin{cases}\left(x+\sqrt{x^2+4}\right)\left(y+\sqrt{y^2+1}\right)=2\\27x^6=x^3+4x+2\end{cases}\)
\(\begin{cases}x-\sqrt{3y-2}=\sqrt{9y^2-6y}-x\sqrt{x^2+2}\\x+y+\sqrt{y+3}=4\end{cases}\)
Mn giúp e với ạ lm đc con nào thì làm ạ e cần gấp :((
\(1.\begin{cases}x^4+4x^3+y^2=8\\-4x^3+2x^2+xy\left(y-2\right)=-4\end{cases}\) 5.\(\begin{cases}xy^3+y^3+xy+y=1\\4x^2y^3-4y^3-8xy-17+8=0\end{cases}\)
\(2.\begin{cases}2x^2y^2+x^2+2x=2\\2x^2y-x^2y^2+2xy=1\end{cases}\) 6.\(\begin{cases}2x+\frac{5y}{x^2+y^2}=4\\2y+\frac{5x}{x^2+y^2}=5\end{cases}\)3.\(\begin{cases}x^2+4y=3\\\left(2y^2+1\right)x=y^4+y^2-4y+1\end{cases}\)
4.\(\begin{cases}x^3+y^3-x^2y-xy^2-xy=0\\y^2-3x^2+3xy+3x-y-1=0\end{cases}\)
\(\begin{cases}\left(5-2x\right)\sqrt{x+2y}=\left(6-x-2y\right)\sqrt{x-1}\\\left(x^3-2y-3\right)\left(x+\sqrt{4y^2-8x^2+24x+5}\right)=21\end{cases}\)
\(\begin{cases}\left(4x^2+1\right)x+\left(y-3\right)\sqrt{5-2y}=0\\4x^2+y^2+2\sqrt{3-4x}=7\end{cases}\)
1)\(\begin{cases}y^3\left(3x^2-4x-23\right)=8-8y\\y^2\left(x^3+10x+27\right)=8x+6y\end{cases}\)
2\(\begin{cases}2\sqrt{x^2+5x-y+2}-2=\sqrt{y^2+8x}+x\\2y-\sqrt{x+1}=x+5\end{cases}\)
\(\begin{cases}x\left(\sqrt{y+6}-x\right)+\sqrt{6\left(x^2-y\right)}=6\\\sqrt{y^2-2x^2+17}+2\sqrt{4y+5}=y^3-2y^2+5x^2-26\end{cases}\)
Giải hệ
a) \(\left\{{}\begin{matrix}x^2\left(y^2+1\right)+2y\left(x^2+x+1\right)=3\\\left(x^2+x\right)\left(y^2+y\right)=1\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}\left(6x+5\right)\sqrt{2x+1}-2y-3y^3=0\\y+\sqrt{x}=\sqrt{2x^2+4x-23}\end{matrix}\right.\)
Giải bất pt
\(\dfrac{9}{\left|x-5\right|-3}\ge\left|x-2\right|\)
1)\(\begin{cases}\left(8x-6\right)\sqrt{y}=\left(2+\sqrt{x-2}\right)\left(y+4\sqrt{x-2}+4\right)\\2\sqrt{x^2+3x-y}-\sqrt{y^2+4x}=x+1\end{cases}\)
2)\(\begin{cases}\left(x+\sqrt{x^2+1}\right)\left(y+\sqrt{y^2+1}\right)=1\\x^2+\sqrt{3-x}=2y^2-4\sqrt{2-y}+5\end{cases}\)