mollyjmoon12 mollyjmoon12
  • 07-04-2021
  • Mathematics
contestada


Perform the indicated operation and write the answer in the form a + bi.
(9+ i)(-6+5i)

Respuesta :

altavistard
altavistard altavistard
  • 07-04-2021

Answer:

-59 + 39i

Step-by-step explanation:

Apply the Distributive Property of Multiplication:

(9)(-6) + (9)(5 i) - 6i - 5 (recall that i^2 = -1)

or:

-54 + 45i - 6i - 5, or

-59 + 39i

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