Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.F(x) = 8x5 - 7x4 + 9x3 - 4
A. 1 positive; 1 or 3 negative
B. 1 or 3 positive; 0 negative
C. 1 or 3 positive; 1 or 3 negative
D. 0, 2, or 4 positive; 0 negative
Answer: B
Mathematics
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