ebrandt11 ebrandt11
  • 24-11-2020
  • Mathematics
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What is the value of the product (3 - 2i)(3+2i)?

Respuesta :

manucpreis2005 manucpreis2005
  • 27-11-2020

Answer:

13

Step-by-step explanation:

1. Distribute each term in the first binomial to each term in the second binomial, FOIL (first, outer, inner, last)

(3 - 2i) (3 + 2i)

9 + 6i - 6i - [tex]4i^{2}[/tex]

2. Simplify

9 - [tex]4i^{2}[/tex]

3. Solve for i. [tex]i^{2}[/tex] = -1

9 - 4 (-1)

9 + 4 = 13

hope this helps!

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