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OpenStudy (anonymous):
What are the possible number of positive, negative, and complex zeros of f(x) = –3x^4 – 5x^3 – x^2 – 8x + 4 ?
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OpenStudy (alexwee123):
use rational root theorem...
OpenStudy (anonymous):
Positive: 1; Negative: 3 or 1; Complex: 2 or 0 http://www.purplemath.com/modules/drofsign.htm--------go there for more info
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