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

Can you construct a triangle that has side lengths 3 ft, 7ft, and 8ft? yes or no
Literally, one celled.
For which reasons did New France grow slowly?
The Compromise of 1850 resolved the issue of slavery in Utah and New Mexico through
What example of figurative language is used in "I have ten legs," when the speaker says, "all my legs shout" (hint:can legs really shout?)
Using a molar heat of combustion of hexane (C6H14) –4163 kJ/mol, the mass of hexane required to increase the temperature of 1.76 L of water from 21.0°C to 70.0°
PLEASE HELP. I CANNOT FIGURE IT OUT!!! In the diagram below, point U is on segment BY and the measure of BUG is 30 degrees greater than the measure of angle GU
what’s the answer to this and working out
write the equation in slope-intercept form 3× + y =9​
I need to know the answer