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OpenStudy (anonymous):
What are the possible number of positive, negative, and complex zeros of f(x) = -2x3 - 5x2 + 6x + 4 ?
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OpenStudy (amistre64):
gonna have to count sign changes
OpenStudy (anonymous):
how do i do that?
OpenStudy (amistre64):
by counting the number of times the sign (+ or -) changes from term to term
OpenStudy (amistre64):
|dw:1366400583913:dw|
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