DBG2017 DBG2017
  • 20-03-2017
  • Mathematics
contestada

Factor completely.

81x4 − 1

Respuesta :

rarrininger
rarrininger rarrininger
  • 21-03-2017
81x^4=
(9x²-1)(9x²+1)=
Factored further is
(3x-1) (3x+1) (9x²+1)
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