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

name two device that are using spinning​
you buy a refrigerator for $711. The sales tax rate is 4%. Estimate the sales tax a) $280 b) $28 c) $29 d) $290
Please anyone help please???):
Help ASAP!! PLEASE EXPLAIN ANSWER
a country can't be " sovereign " unless it controls its territory ( true or false)
Write the equation of the directrix of the parabola shown below.y^2+16y+4x+4=0
Help!For which reason are various countries reluctant to make firm commitments to make deep reductions in greenhouse gases?A. They believe reducing greenhouse g
What sentence is correct? Let's keep this among the two of us. Let’s keep this between the two of us.
find , please help me please help me..​
Fill in the blank in the following sentence with the appropriate form of the adjective cher below.La maison bleue est la maison la plus ________. A.cher B.cher