kell30 kell30
  • 14-11-2017
  • Mathematics
contestada

(-7-4i)(-6-6i) simply

Respuesta :

lilxiong
lilxiong lilxiong
  • 14-11-2017
To simplify this, use FOIL (First outer, Inner last) which would be distributing each term to one another.
This would look like this:
(-7*-6)+(-7*-6i)+(-4i*-6)+(-4i*-6i) 
When you simplify it should look like this:
(42)+(42i)+(-24i)+(24(i^2))
Now for the last term, since i is equivalent to √-1, i^2 would be -1
This would look like this: (24*-1)=-24
Now that we have everything simplified, combine like terms and your answer is 18+18i




Answer Link

Otras preguntas

Marco paid $36.89 for 8.6 gallons of gas.  What is the price per gallon?
Rick has 12 action, 15 comedy, and 9 drama DVDS. find the ratio of action DVDS to the total of DVDS. Then explain its meaning how would I do this problem?
what is wrongith this sentence?     He did all the housework today.
Danny reads 4 pages of a book each day.After 12 days, hes still has 82 pages left to read.How many pages does the book have?
A process with less than 100% efficiency is?
Danny reads 4 pages of a book each day.After 12 days, hes still has 82 pages left to read.How many pages does the book have?
Sin42cos17-cos42sin17
Marco paid $36.89 for 8.6 gallons of gas.  What is the price per gallon?
Danny reads 4 pages of a book each day.After 12 days, hes still has 82 pages left to read.How many pages does the book have?
Why isn't badminton consider a sport to most of the people in United States?