kaia901 kaia901
  • 12-04-2019
  • Mathematics
contestada

What is the complete factorization of the polynomial below x^3+2x^2+4x+8

What is the complete factorization of the polynomial below x32x24x8 class=

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choixongdong
choixongdong choixongdong
  • 12-04-2019

Answer:

c) (x + 2)(x + 2i)(x - 2i)

Step-by-step explanation:

x^3 + 2x^2 + 4x + 8

= (x^3 + 2x^2) + (4x + 8)

= x^2( x + 2) + 4(x + 2)

= (x + 2)(x^2 + 4)

= (x + 2)(x^2 - 4i^2)  ---------------------------->(i^2 = -1)

= (x + 2)(x + 2i)(x - 2i)

Answer Link
jadonlemmonds
jadonlemmonds jadonlemmonds
  • 04-12-2019

Answer:

It is C.

Step-by-step explanation:

Answer Link

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