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anonymous
 4 years ago
anyone want to possibly help me on complex roots?? I don't understand it and I have a test over the homework tomorrow.
anonymous
 4 years ago
anyone want to possibly help me on complex roots?? I don't understand it and I have a test over the homework tomorrow.

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0it says state the number of complex roots, the possible number of real roots, and the possible rational roots for \[x ^{3}+4x ^{2}+5x1=0\]

EarthCitizen
 4 years ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=x+%5E%283%29%2B4x+%5E%282%29%2B5x1%3D0

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1To help you prepare for your test, you might want to know that the possible rational roots are the factors of the constant term divided by the factors of the coefficient of the leading term. In your example, both of those numbers are 1 so the only possible rational roots are positive and negative 1.

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1typically you would use synthetic division to see if either of those possibilities is actually a root.

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1Do you understand so far?

EarthCitizen
 4 years ago
Best ResponseYou've already chosen the best response.0or if you so prefer, use cubic equation
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