cha2244675 cha2244675
  • 05-05-2020
  • Mathematics
contestada

Please help! Thank you! I will mark brainliest!

Please help Thank you I will mark brainliest class=

Respuesta :

OfficialRoytriever OfficialRoytriever
  • 05-05-2020

1. (x+3i)(x-3i)

x^2 -3xi + 3xi + 9i^2

1 equals 9i^2 + x^2

2. (x-4i)(x+4i)

x^2 + 4xi -4xi -16i^2

2 equals -16i^2 + x^2

3.  (x+8i)(x-8i)

x^2 -8ix + 8ix -64i^2

3. equals -64i^2 + x^2

Answers:

1. 9i^2 + x^2  

2. -16i^2 + x^2  

3. -64i^2 + x^2

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