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[tex]5 {x}^{2} - 5x + 1 = 0[/tex]
[tex](x - \frac{5 + \sqrt{5} }{10} )(x - \frac{5 - \sqrt{5} }{10} ) = 0 \\ [/tex]
Thus :
[tex]x = \frac{5 + \sqrt{5} }{10} \\ [/tex]
[tex]x = \frac{5 - \sqrt{5} }{10} \\ [/tex]
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