Respuesta :

ImpatientAngel
[tex] x^{2} - 4 = 45[/tex]

[tex] x^{2} [/tex] = 45 + 4

[tex] x^{2} [/tex] = 49

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

x = 7
Hi:))

x² - 4 = 45

X² = 45 + 4

X² = 49

√x² = √49

x = 7

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