graydoncole4618
graydoncole4618 graydoncole4618
  • 01-09-2020
  • Mathematics
contestada

What is the value of the product (3 – 2i)(3 + 2i)? 5 9 + 4i 9 – 4i 13

Respuesta :

littlelitmax
littlelitmax littlelitmax
  • 01-09-2020

Answer:

13

Step-by-step explanation:

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

as (a+b)(a-b) =a²-b²

3²-(2i)²

=9-(4*-1)

=9-(-4)

=9+4

=13

Hope this helps you!

Answer Link
Lukrest Lukrest
  • 08-10-2020

Answer:

13

Step-by-step explanation:

3^2=9, 2i*(-2i)=-4i^2=4

the 6i and -6i cancel leaving the positive 9 and 4

9+4=13

Answer Link

Otras preguntas

Is the following polynomial or not 5xy^2+3x^2y-2x^2y^2 ​
Why was Anne Frank famous?
Based on the repetition of “I shall not live in vain,” what is most likely the subject of the poem? living life without pain living life with questions living
A father's age now is three times the age that his son was 4 years ago. In 12 years, the father will be twice as old as his son. find their ages now.
Find the value: please help
How much of a circle does a 100-degree angle turn through? A.1 B.100/180 C.50/360 D.100/360
on which law is the given diagram based? state the law.​
What is 3/16 of 200 written as a percentage?  ​
(PLSS HALP) What is the area of triangle PQR on the grid? (5 square units) (6 square units) (10 square units) (12 square units) I Will Give Brainliest
Active: She did not tell me. Passive: