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

The first bookshelf in the science fiction section of a library can hold 2 comma 768 books. The bookshelf has 8 shelves. Each shelf can hold the same number of

8. Find the area (in terms of π) of a sector that has a central angle of 45° and a radius r = 12in. 12in 9. Two cities are on the same longitude. One is situate

What is twenty-one - eighteen?

3 4 6 13 16 19 ◄)) and Submit have a sum of 25

A vendor at a fair ties her tent to a rock-filled coffee can in order to hold the rope down. The can, including the rocks, has a mass of 2.5 kg. A stiff breeze

Why does renal failure cause pulmonary edema?

A person drops two objects from the same height. One object weighs 15 N, and the other weighs 10 N. How does the mass of the objects relate to the force of grav

Write the quotient when the sum of 73 and 37 is divided by(i) 11 (ii) 10

Water closet bowls must be of _________ type.a) Elongatedb) Roundc) Squared) Oval

Is 5/5 equivalent of 3/3