rebeccajones33
rebeccajones33 rebeccajones33
  • 18-09-2016
  • Mathematics
contestada

x2 + 2 = x + 8, {1, 3, 4, 5}

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 18-09-2016
x^2 + 2 = x + 8
x^2 - x + 2 - 8 = 0
x^2 - x - 6 = 0
(x + 2)(x - 3) = 0
x = -2 or x = 3
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