Respuesta :

Answer:

[tex]x=\frac{2}{7}[/tex]

Step-by-step explanation:

[tex]x^{2}=\frac{4}{49}[/tex]

[tex]\sqrt{x^2}=\sqrt{\frac{4}{49}[/tex]

[tex]x=\pm\frac{2}{7}[/tex]

Since we only want the positive value, then [tex]x=\frac{2}{7}[/tex] is correct.

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