\(\Leftrightarrow\left\{{}\begin{matrix}2y\left(x^2-y^2\right)=3x\\10y=x\left(x^2+y^2\right)\end{matrix}\right.\)
Nhân vế với vế:
\(20y^2\left(x^2-y^2\right)=3x^2\left(x^2+y^2\right)\)
\(\Leftrightarrow3x^4-17x^2y^2+20y^4=0\)
\(\Leftrightarrow\left(x^2-4y^2\right)\left(3x^2-5y^2\right)=0\)
\(\Leftrightarrow...\)