\( x^{4}+x^{2} y^{2}+y^{4}=27, x^{2}+x y+y^{2}=9 \) এবং \( l=3^{m}+3^{1-m} \)

\( x^{4}+x^{2} y^{2}+y^{4}=27, x^{2}+x y+y^{2}=9 \) এবং \( l=3^{m}+3^{1-m} \) - চর্চা