rainbowaffect22
rainbowaffect22 rainbowaffect22
  • 12-12-2016
  • Mathematics
contestada

find the real or imaginary solution by factoring

x^4-12x^2=64

Respuesta :

Jubeta
Jubeta Jubeta
  • 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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