Ask
your own question, for FREE!
Mathematics
13 Online
OpenStudy (gabylovesyou):
@ganeshie8 (5 - 4i)(3 + 3i)
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (trojanpoem):
Normal multiplication
OpenStudy (trojanpoem):
i * i = i^2 which is rootof(-1) ^2 = -1
OpenStudy (gabylovesyou):
i get 15 + 15i - 12i - 12i ?
OpenStudy (gabylovesyou):
whoops 12i^2 at the end
OpenStudy (trojanpoem):
+12
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (gabylovesyou):
but -4 * 3 is -12
OpenStudy (trojanpoem):
It is.
OpenStudy (trojanpoem):
I was talking about 12 i ^2 = 12
Nnesha (nnesha):
|dw:1426191387901:dw| when you multiply 3i times -4i you should get -12i^2 right ?
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
DoltonCarlee:
So like do y'all know anything about the first world war?
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
27 minutes ago
8 Replies
2 Medals
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
2 hours ago
1 Reply
0 Medals
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
4 hours ago
10 Replies
0 Medals
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
2 hours ago
5 Replies
0 Medals
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
1 day ago
10 Replies
2 Medals
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
2 days ago
6 Replies
1 Medal
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
4 days ago
0 Replies
0 Medals
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
4 days ago
2 Replies
1 Medal
DoltonCarlee:
So like do y'all know anything about the first world war?
3 days ago
2 Replies
0 Medals
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
3 days ago
5 Replies
2 Medals