haleybrown8888 haleybrown8888

03-10-2019
Mathematics

contestada

Simplify (-7+3i)^2+(-2+8i)
Show all work

Respuesta :

emily10898Emily10898 emily10898Emily10898

03-10-2019

Answer:

[tex](-7 + 3i)^{2} + (-2 + 8i) = 38 - 36i[/tex]

Step-by-step explanation:

(-7 + 3i)(-7 + 3i) + (-2 + 8i)

[tex]49 - 21i -21i + 9i^{2} = 49 - 42i -9 = 40 - 42i[/tex]

40 - 42i + (-2 + 8i)

38 - 36i

Answer Link

Otras preguntas

solve for x 4^x-2=256

how much interest will roxanne have to pay if she borrows $3,000 for 3 years at a simple interest rate of 2%

A theorem is a statement in geometry that is accepted without proof. Please select the best answer from the choices provided T F

An American who believes that government should not get involved in the economy, but should restrict social choices, is most likely to be a

Giants and dwarfs are believed to be _________stars (Old or Young).

Comets or meteors (cause, causes) craters, but neither the planet’s features nor its terrain (appear, appears) rocky. a. causes; appears b. causes; appear c. ca

What is the word for the definition for the person in charge of a local union?

What is the word for the definition for the person in charge of a local union?

The highlighted word is a/an ________. Persevering is highlighted A) participle B) coordinating conjunction C) gerund D) modal

Human activity contributes to the extinction of species. Which is not a human activity that contributes to the extinction of a species? a. introducing a nonnati