stuffmonkey stuffmonkey
  • 17-12-2019
  • Mathematics
contestada

factor completely x^8-8x^4+12

Respuesta :

prhsmms
prhsmms prhsmms
  • 18-12-2019

Answer:

x = √√6, x = √√2

Step-by-step explanation:

x^8 - 8x^4 + 12

  • treat x^4 as the value "u". This will just make things less confusing.

u^2 - 8u + 12

  • looks familiar right?

(u - 6)(u - 2)

  • you can change u to x^4 now.

(x^4 - 6)(x^4 - 2)

x^4 = 6 and x^4 = 2

x = √√6 x=√√2

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