Respuesta :

Answer:

x = 2[tex]\sqrt{5}[/tex]

Step-by-step explanation:

2² + 4² = x²

4 + 16 = x²

[tex]\sqrt{x^2}[/tex] = [tex]\sqrt{20}[/tex]

x = [tex]\sqrt{2^2}[/tex] × [tex]\sqrt{5}[/tex]

x = 2[tex]\sqrt{5}[/tex]

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