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Linear–quadratic simultaneous equations

A Math · Secondary 3 · Hard · Linear–quadratic simultaneous equations

1. $\dfrac{7-\sqrt{22}}{3}$
2. $\dfrac{7+\sqrt{22}}{3}$
3. $\dfrac{14-\sqrt{22}}{3}$
4. $\dfrac{14+\sqrt{22}}{3}$

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