Question
$\{ x \in R:|x - 2|\,\, = {x^2}\} = $
$ \Rightarrow {x^2} - x + 2 = 0$ या ${x^2} + x - 2 = 0$ $ \Rightarrow {x^2} + x - 2 = 0$
[$\because {x^2} - x + 2 = 0$ कोई भी वास्तविक मूल नहीं देता है]
$ \Rightarrow (x + 2)(x - 1) = 0\,\,\, \Rightarrow x = - 2,\,1$.
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