niecepierce1130 niecepierce1130
  • 15-06-2017
  • Mathematics
contestada

Which are the solutions of x^2= 19x+1?

Respuesta :

mergl
mergl mergl
  • 19-06-2017
x^2=19x+1
x^2-19x-1=0
-(-19)+(19^2-4(1)(-1))^(1/2))/(2*1)
(19+(361+4)^(1/2))/(2)
=(19+(365^(1/2))/2
=(19-(365^(1/2))/2
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