not for JEE
\textbf{Solve system of equations }\textbf{\begin{cases} x^4+y^4+6x^2y^2=8 \\ x^3+3xy^2=x^2+y^2+2 \end{cases}}
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\textbf{Solve system of equations }\textbf{\begin{cases} x^4+y^4+6x^2y^2=8 \\ x^3+3xy^2=x^2+y^2+2 \end{cases}}