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It can be shown that for any positive real number rrr, the infinitely nested radical expression r+r+r+⋯ \sqrt{ r + \sqrt{r + \sqrt{r + \cdots}}} r+r+r+⋯ is a finite positive number. Find xxx such that x+x+x+…=17.\sqrt{x+\sqrt{x+\sqrt{x+\ldots}}}=17.x+x+x+…=17.
This problem is posed by Mary J.
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