samkodakrain samkodakrain

18-02-2019
Mathematics

contestada

what are the real solutions to the equation |x|^2 +2 |x| - 3 = 0 ?

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Kamikazeminem Kamikazeminem

18-02-2019

[tex] { |x| }^{2} + 2 |x| - 3 = 0 \\ < = > {x}^{2} + 2 |x| - 3 = 0 \\ < = > {x}^{2} - 3 = - 2 |x| \\ < = > - \frac{ {x}^{2} - 3 }{2} = |x| \\ = > x\in \emptyset[/tex]

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