princessnyjah0 princessnyjah0
  • 22-01-2020
  • Mathematics
contestada

which epression is equivalent to(4+7i)(3+4i)?​

Respuesta :

logananway5646 logananway5646
  • 22-01-2020

Answer:

(12+12i)

Step-by-step explanation:

Answer Link
nonsibi
nonsibi nonsibi
  • 22-01-2020

Using FOIL...

(4+7i)(3+4i) = 12+16i+21i+28i² = 12+37i+28i²

Because i²=-1...

12+37i+28i² = 12+37i+28(-1) = 12+37i-28 = -16+37i

Answer Link

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