Respuesta:
x=15
Explicación paso a paso:
x²-80=145
[tex]x^{2}[/tex] = 145+80
[tex]x^{2}[/tex] = 225
x= [tex]\sqrt{225}[/tex]
x = 15
VERIFICACIÓN
[tex]15^{2}[/tex] -80 = 145
225 - 80 =145
145 = 145
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Respuesta:
x=15
Explicación paso a paso:
x²-80=145
[tex]x^{2}[/tex] = 145+80
[tex]x^{2}[/tex] = 225
x= [tex]\sqrt{225}[/tex]
x = 15
VERIFICACIÓN
x²-80=145
[tex]15^{2}[/tex] -80 = 145
225 - 80 =145
145 = 145