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DeadShot
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What are the possible number of positive, negative, and complex zeros of f(x) = x^6 + x^5+ x^4 + 4x^3  12x^2 + 12 ?
 one year ago
 one year ago
DeadShot Group Title
What are the possible number of positive, negative, and complex zeros of f(x) = x^6 + x^5+ x^4 + 4x^3  12x^2 + 12 ?
 one year ago
 one year ago

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e.cociuba Group TitleBest ResponseYou've already chosen the best response.1
Descartes' Rule of Signs tells you that there could be four positive roots, and two negative roots, and any pair of those positive and negative roots could be replaced by a pair of complex conjugates. In actuality, that function has two positive, two negative and two complex roots, but Descartes isn't as precise as that.
 one year ago

DeadShot Group TitleBest ResponseYou've already chosen the best response.0
Ok, thanks!
 one year ago
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