Ononot — Solve the system for x, y \in \mathbb{R}: x^3 + y^3 = 9 and

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Equations & Systemshard

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Solve the system for $x, y \in \mathbb{R}$ : $x^3 + y^3 = 9$ and $xy = 2$ . What is the sum of the possible real values of $x$ ?