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Algebra Level 1

If \(x\) is a positive real number satisfying the equation \( x - \dfrac1x = 3 \), what is the value of \(x+ \dfrac1x \)?

\[\sqrt{7} \] \[ \sqrt{13} \] \[ \sqrt{19} \] \[ \sqrt{25} \]

Excel in math and science

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by Chung Kevin

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