giải hpt
x2y+xy2=0
2x2+3xy+2y2=1
\(\left\{{}\begin{matrix}\left(x-1\right).6+\left(y-2\right).\left(-2\right)=0\\\left(x+1\right).4+\left(y-1\right).\left(-3\right)=0\end{matrix}\right.\)
Giải hpt
Giải hpt
1.\(\begin{cases}2x^2+xy-y^2-5x+y+2=0\\x^2+y^2+x+y-4=0\end{cases}\)
2.\(\begin{cases}3x^3-y^3=\frac{1}{x+y}\\x^2+y^2=1\end{cases}\)
giải hệ pt :
\(\left\{{}\begin{matrix}x^2+2y^2-3xy-y-1=0\\x^2+y^2-y-3=0\end{matrix}\right.\)
1.Giải hpt : a,\(\left\{{}\begin{matrix}\left(x+y+3\right)\sqrt{x-2y}+2y+4=0\\\left(x-y\right)\left(x^2+4\right)=y^2+1\end{matrix}\right.\)
giải hpt: \(\left\{{}\begin{matrix}x^2-3xy+y^2=3\\x^2+2xy-2y^2=6\end{matrix}\right.\)
Giải HPT:
\(\left\{{}\begin{matrix}x^4+2\left(3y+1\right)x^2+\left(5y^2+4y+11\right)x-y^2+10y+2=0\\y^3+\left(x-2\right)y+x^2+x+2=0\end{matrix}\right.\)
Giải phương trình: x2 - 2x + 4 - 2\(\sqrt{x^3-1}\) = 0
Giải hpt : \(\left\{{}\begin{matrix}x^2+y^2-2y-6+2\sqrt{2y+3}=0\\\left(x-y\right)\left(x^2+xy+y^2+3\right)=3\left(x^2+y^2\right)+2\end{matrix}\right.\)
