LondanS451932 LondanS451932
  • 03-11-2022
  • Mathematics
contestada

how do I solve (-2+5i) (4-i) +(2-i)

Respuesta :

KeelinJ551368 KeelinJ551368
  • 03-11-2022

Given:

[tex](-2+5i)(4-i)+(2-i)[/tex]

Using the distributive property for the multiplication then combine the like terms

so, the given expression will be:

Note: i² = -1

[tex]\begin{gathered} (-2+5i)(4-i)+(2-i) \\ =-2(4-i)+5i(4-i)+(2-i) \\ =-8+2i+20i-5i^2+2-i \\ =-8+2i+20i+5+2-i \\ =(-8+5+2)+(2i+20i-i) \\ =-1+21i \end{gathered}[/tex]

So, the answer will be:

[tex]-1+21i[/tex]

Answer Link

Otras preguntas

what is 49% written as a fraction
Why was the urban revolution essential in the development of civilizations? A. During the urban revolution, people used more land for agricultural purposes, w
Water _____. boils at 100°C cools very quickly is made of helium and oxygen is slightly acidic at the oxygen end
In the executive branch, the title of department is reserved for a. agencies of Cabinet rank. b. independent agencies. c. agencies of the judicial branch. d.
Where did the city of Rome develop , and why was that location ideal
What causes Seafloor spreading
organism lacking enzyme--
An 8-pound bag of apples costs $17.50. What is the unit price?
If an object travels at five feet per second, how many feet does it travel in one hour?
Lily has a bottle containing 7/8 quart of milk. She pours 4/5 of it into s bowl. What amount of milk does she pour into the bowl