giai he phuong trinh sau :
x^3 - x^2 y^2 - y^3 + 1 = 0 va x^3 + xy - 2 = 0
NA
Những câu hỏi liên quan
giai he phuong trinh
x+2\x+1\y=4
1\x^2+1\xy+x\y=3
Giai phuong trinh va he phuong trinh:
a) \(\sqrt{x^2+6}=x-2\sqrt{x^2-1}\)
b) \(x^2+3x+1=\left(x+3\right).\sqrt{x^2+1}\)
c) \(\left\{{}\begin{matrix}x^2+y^2=11\\x+xy+y=3+4\sqrt{2}\end{matrix}\right.\)
giai he phuong trinh x/x-1 + 2y/y+2 = 3 va 2x/x-1 - y/y+2 = -4
giai he phuong trinh \(\left\{{}\begin{matrix}x^2+y^2+xy=1\\x^3+y^3=x+3y\end{matrix}\right.\)
HPT\(\Leftrightarrow\left\{{}\begin{matrix}x^2+y^2-xy=1-2xy\\\left(x+y\right)\left(1-2xy\right)=x+3y\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}x^2+y^2+xy=1\\x^2+xy=-1\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}x^2+y^2+xy=1\\y=-\sqrt{2};\sqrt{2}\end{matrix}\right.\)
The vao roi tinh la xong
giai phuong trinh va he phuong trinh sau:
x2 + 5x -6=0
b{4x+5y=3
{x-3y=5
giai mau giup toi nhe cac ban
giai he phuong trinh 5x+5y=8xy va 2/x-5/y=-1/3
Cho he phuong trinh: x-my=0
mx-y=m+1 (m la tham so)
a Giai va bien luan he phuong trinh tren
b Tim m de hpt co nghiem duy nhat thoa man
1 M(x,y) cach deu 2 truc toa do
2 P(2,4) va Q(-2,-6) doi xung qua M(x,y)
https://i.imgur.com/9dh3TAn.jpg
giai he phuong trinh
\(2x^2-y^2+xy+y-5x+2=0\)
\(x^2+y^2+x+y-4=0\)
\(\Leftrightarrow-y^2+\left(x+1\right)y+2x^2-5x+2=0\)
\(\Rightarrow-\left(y^2+\left(-x-1\right)y-2x^2+5x-2\right)=0\)
\(\Rightarrow y^2+\left(-x-1\right)y-2x^2+5x-2=0\)
\(\Leftrightarrow y^2-xy-y-2x^2+5x-2=0\)
\(\Rightarrow y=2-x\) hoặc \(y=2x-1\)
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Giai he phuong trinh : \(\left\{{}\begin{matrix}x^2+y^2+xy=3\\x^2+xy=7x+5y-9\end{matrix}\right.\)