\(\left\{{}\begin{matrix}17\left(x-y\right)=3xy-2x^2-y^2\\\sqrt{x+3}+\sqrt{10-y}=x^2-7y+11\end{matrix}\right.\)

tìm m để hệ phương trình \(\left\{{}\begin{matrix}x+y+xy=m+1\\x^2y+y^2x=3m-5\end{matrix}\right.\)      có 1 no duy nhất                    

\(\left\{{}\begin{matrix}x^3=2x+y\\y^3=2y+x\end{matrix}\right.\)

\(\left\{{}\begin{matrix}x+y+x^2+y^2=8\\xy\left(x+1\right)\left(y+1\right)=12\end{matrix}\right.\)

\(x^3-3x^2+2\sqrt{\left(x+3\right)}^3-9x=0\)

\(2x^2+2=4\sqrt{x^4+1}\)

\(\left(x+3\right)\left(x^2+1\right)+4\left(x+2\right)\sqrt{1+x^2}-16=0\)