1)\(\left\{{}\begin{matrix}1+x^3y^3=19x^3\\y\left(1+xy\right)=-6x^2\end{matrix}\right.\)
2) \(\left\{{}\begin{matrix}\sqrt{x-4}+\sqrt{y-1}=4\\x+y=63\end{matrix}\right.\)
Giải hệ phương trình
a, \(\left\{{}\begin{matrix}\sqrt[4]{x^3-1}+\sqrt{x}=3\\x^2+y^3=82\end{matrix}\right.\) d, \(\left\{{}\begin{matrix}x-\frac{1}{x}=y-\frac{1}{y}\\2y=x^3+1\end{matrix}\right.\)
b, \(\left\{{}\begin{matrix}\sqrt{x+\frac{1}{y}}+\sqrt{x+y-3}=3\\2x+y+\frac{1}{y}=8\end{matrix}\right.\)
c,\(\left\{{}\begin{matrix}\frac{3}{x^2}=2x+y\\\frac{3}{y^2}=2y+x\end{matrix}\right.\)
giải hệ PT \(\left\{{}\begin{matrix}x+y=4\\\left(x^3+y^3\right)\left(x^2+y^2\right)=280\end{matrix}\right.\)
\(\left\{{}\begin{matrix}\sqrt{5x-y}-\sqrt[]{2y-x}=1\\2\sqrt{2y-x}+3xy=2x^2+y^2+3x-1\end{matrix}\right.\)
Giải hệ PT: \(\left\{{}\begin{matrix}x^2-y^2=1-xy\\x^2+y^2=3xy+11\end{matrix}\right.\)
giải hệ pt sau:\(\left\{{}\begin{matrix}\sqrt{x+y}-\sqrt{x-y}=2\\\sqrt{x^2+y^2}+\sqrt{x^2-y^2}=4\end{matrix}\right.\)
\(\left\{{}\begin{matrix}x^2+y^2+x+y=4\\3xy-x-y=1\end{matrix}\right.\)
Giải hệ phương trình:
\(\left\{{}\begin{matrix}2\left(x+y\right)=3\left(\sqrt[3]{x^2y}+\sqrt[3]{xy^2}\right)\\\sqrt[3]{x}+\sqrt[3]{y}=6\end{matrix}\right.\)
giải pt
\(\left\{{}\begin{matrix}5x^2-3y=x-3xy\\x^3-x^2=y^3-3y^2\end{matrix}\right.\)