There's A Really Simple Solution

Algebra Level 1

\[\large \text{If } \hspace{.1cm} {x + y = xy = 3}, \hspace{.05cm} {\text{ then evaluate }} \hspace{.1cm} {x^3 + y^3}. \]

(Note: the intersections of the system involve complex numbers but they are unnecessary to work out \({x^3 + y^3}.\))

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