topop13 topop13

04-03-2020
Mathematics

contestada

Perform the indicated operation and write the result in the form a + bi.
4i(-i + 3) - 3(6 - 2i)

Respuesta :

jimrgrant1 jimrgrant1

04-03-2020

Answer:

- 14 + 18i

Step-by-step explanation:

Note that i² = ([tex]\sqrt{-1}[/tex] )² = - 1

Given

4i(- i + 3) - 3(6 - 21) ← distribute both parenthesis

= - 4i² + 12i - 18 + 6i

= - 4(- 1) - 18 + 18i

= 4 - 18 + 18i

= - 14 + 18i

Answer Link

Otras preguntas

Having a hard time understanding this question (see attachment).

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.What was the percent weight loss

Prove that 16^4-2^13-4^5 is divisible by 11.

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

What was the significance other than the obvious harm to us forces of the terror attack on the uss cole in 2000

Which contraceptive methods will prevent the spread of HIV and other STDs? Check all that apply. diaphragm male condom female condom pill/minipill spermicides

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Match each object to its description: A. Coma of a comet B. Comet tail C. Oort cloud Haze surrounding a nucleus Created by solar wind. Hypothe

plzz help me Between what two words does the ellipses appear in the following sentence? "The cat...ate his breakfast." "the" and "cat" "cat" and "ate" "ate"

Escoge la respuesta correcta. ?Qué ocurrió durante los a?os 1960-1996 en Guatemala? Las olimpíadas. El concurso del premio Nobel. Una guerra civil. Un boom econ