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anonymous
 one year ago
How do you find the complex roots of a polynomial?
anonymous
 one year ago
How do you find the complex roots of a polynomial?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you have an example? The process could be different depending on what you have.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04x^3 – 12x + 9 = 0 Something like this... The example my teacher gave to me said that because equation has a degree of 3 it has 3 complex roots... and i think im interpreting that wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Its impossible to have 3 complex roots. There can only be an even number of roots.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0even number of complex I mean

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0he said that for imaginary roots

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah, complex roots and imaginary roots you can consider to be the same thing. There must be an even number of imaginary roots. So this cubic either has 2 imaginary roots or 0.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so it can be either one? or do i have to find out which one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes, you might have 2 imaginary or you might have 0 imaginary. You would want to ty and see if you could factor the cubic and find its zeros first.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay! Thanks for clearing that up for me!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Mhm, sure. If you had to actually do this problem, though, it appears that it wont factor cleanly. The best you could do is show that it does have 1 real zero and that there cant be another real zero. So yeah, this problem has 2 imaginary roots.
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