Giải hpt \(\left\{{}\begin{matrix}\sqrt{y+3x}+\sqrt{2x+7y}=\sqrt{5x-y}+3\sqrt{x}\\x-4-\sqrt{y-2}=\sqrt{x^3-10x^2+33x-34}-\sqrt{y^3-9y^2+24y-16}\end{matrix}\right.\)
1/ Giải hpt = p đặt ẩn phụ : a,\(\left\{{}\begin{matrix}\left(x+y\right)^3+y=5\\3\left(x+y\right)^3-22xy+21=11x^2+12y^3\end{matrix}\right.\)
b,\(\left\{{}\begin{matrix}81x^3y^2-81x^2y^2+33xy^2-29y^2=4\\25y^3+9x^2y^3-6xy^3-4y^2=24\end{matrix}\right.\)
Giải hpt: \(\left\{{}\begin{matrix}\sqrt{x}+\sqrt{y}=2\\\sqrt{x+3}+\sqrt{y+3}=4\end{matrix}\right.\)
Giải các hpt:
1)\(\left\{{}\begin{matrix}\frac{10}{x-1}+\frac{1}{y+2}=1\\\frac{25}{x-1}+\frac{3}{y+2}=2\end{matrix}\right.\)
2)\(\left\{{}\begin{matrix}4\left|x+y\right|-3\left|x-y\right|=8\\3\left|x+y\right|-5\left|x-y\right|=6\end{matrix}\right.\)
Giải hpt;\(\left\{{}\begin{matrix}x^3+y^3=1\\\left(x+y\right)^2y=2\end{matrix}\right.\)
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: \(\left\{{}\begin{matrix}x^2+2y^2=3\\x+y^2+xy=1\end{matrix}\right.\)
Giải hpt:
a)\(\left\{{}\begin{matrix}x^4+4x^2y+y^2=6x^2\\x^2+x+y=3xy\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}x^2\left(y^2+2\right)+2y\left(x^2+x+1\right)=3\\\left(x^2+x\right)\left(y^2+y\right)=1\end{matrix}\right.\)
Giải hpt : \(\left\{{}\begin{matrix}x^2+y^2-2y-6+2\sqrt{2y+3}=0\\\left(x-y\right)\left(x^2+xy+y^2+3\right)=3\left(x^2+y^2\right)+2\end{matrix}\right.\)