# For those who don't know Part 6 (Determinants)

Algebra Level 2

$$X=\left| \begin{matrix} x & y & 1 \\ { x }^{ 2 } & { y }^{ 2 } & x+y \\ { x }^{ 3 } & { y }^{ 3 } & { x }^{ 2 }+xy+{ y }^{ 2 } \end{matrix} \right|$$

Find the value of $$X$$

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