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rkent100
Group Title
can someone help me with complex numbers and the quadratic equaion
 2 years ago
 2 years ago
rkent100 Group Title
can someone help me with complex numbers and the quadratic equaion
 2 years ago
 2 years ago

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chaise Group TitleBest ResponseYou've already chosen the best response.2
I'd love to  do you want help with anything specific, or just something broad?
 2 years ago

rkent100 Group TitleBest ResponseYou've already chosen the best response.0
i don't get multiplying and dividing complex numbers
 2 years ago

chaise Group TitleBest ResponseYou've already chosen the best response.2
You can simply use foil to multiply complex numbers together. When you divide it's a little bit more tricky, you need to multiply by the conjugate of the denominator. Maybe try watching this video :) This guy is good. http://www.youtube.com/watch?v=KPSj476eEc
 2 years ago

rkent100 Group TitleBest ResponseYou've already chosen the best response.0
my math teacher said i need to study quadratic equation before my test tomorrow
 2 years ago

chaise Group TitleBest ResponseYou've already chosen the best response.2
http://www.youtube.com/watch?v=iulx0z1lz8M It's not too difficult, and really easy to pickup :)
 2 years ago

fiddlearound Group TitleBest ResponseYou've already chosen the best response.0
These are good videos about complex numbers: http://www.khanacademy.org/video/complexnumberspart1?playlist=Algebra http://www.khanacademy.org/video/complexnumberspart2?playlist=Algebra And this is for the quadratic formula: http://www.khanacademy.org/video/introductiontothequadraticequation?playlist=Algebra
 2 years ago

fiddlearound Group TitleBest ResponseYou've already chosen the best response.0
Correction: http://www.khanacademy.org/video/quadraticequationpart2?playlist=Algebra
 2 years ago

rkent100 Group TitleBest ResponseYou've already chosen the best response.0
on a recent quiz i got this problem wrong find the product: (3+6i)(47i) and i got 7i.
 2 years ago

chaise Group TitleBest ResponseYou've already chosen the best response.2
You need to use foil, seems to me you added liketerms. You need to foil. You should get: 54+3i You should watch them videos.
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
\[1221i+24i42i^2\] \[1221i+24i+42\] 54+3i \[i^2\] becomes 1.
 2 years ago
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