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12-12-2016
Mathematics

contestada

find the real or imaginary solution by factoring

x^4-12x^2=64

Respuesta :

12-12-2016

x^4-12x^2=64
x^4-12x^2-64=0
t^2-12t-64=0
t=16
t=-4
x^2=16
x^2=-4
x=4
x=-4
x does not belong R
x=-4
x=4
X1=-4

X2=4

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