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

During track practice, Britney ran 2 miles and sprinted 3,200 feet. In total, how many feet did she travel during practice?
can someone give me the answer
How much change will MRS Sloan receive....
helpppp due by 12:00
What is the equation of the graphed linear model?
How do you solve 6 2/3 - 3 3/4
Simplify this expression. 0.75(3.5a - 6b)
in what other situations was this policy employed
How did most americans reacted to president johnson's decision to commit troops to war in vietnam?
The u.s. supreme court ruled that the fourth amendment protects persons evidencing an expectation of privacy. however, society must be willing to recognize that