Respuesta :

fredycopete

Answer:

X= [tex]2\sqrt{10}[/tex]

Step-by-step explanation:

[tex]40-x^{2}[/tex]=0

40=[tex]x^{2}[/tex]

x=[tex]\sqrt{40\\}[/tex]

[tex]\left \{ {{x=+\sqrt{40} } \atop {x=-\sqrt{40} }} \right.[/tex]

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