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I'd love to - do you want help with anything specific, or just something broad?

i don't get multiplying and dividing complex numbers

my math teacher said i need to study quadratic equation before my test tomorrow

http://www.youtube.com/watch?v=iulx0z1lz8M
It's not too difficult, and really easy to pickup :)

Correction:
http://www.khanacademy.org/video/quadratic-equation-part-2?playlist=Algebra

on a recent quiz i got this problem wrong
find the product: (3+6i)(4-7i)
and i got 7-i.

\[12-21i+24i-42i^2\]
\[12-21i+24i+42\]
54+3i
\[i^2\] becomes -1.