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Use Descartes' Rule of Signs to Determine the Possible Number f(x)=6x38x2+8x+5f ( x ) = 6 x ^ { 3 } - 8 x ^ { 2 } + 8 x + 5

Question 4

Multiple Choice

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) =6x38x2+8x+5f ( x ) = 6 x ^ { 3 } - 8 x ^ { 2 } + 8 x + 5


A)
 Positive  Negative  Nonreal Complex 120021\begin{array}{c|c|c}\text { Positive } & \text { Negative } & \text { Nonreal Complex } \\\hline 1 & 2 & 0 \\0 & 2 & 1\end{array}
B)
 Positive  Negative  Nonreal Complex 021012\begin{array}{c|c|c}\text { Positive } & \text { Negative } & \text { Nonreal Complex } \\\hline 0 & 2 & 1 \\0 & 1 & 2\end{array}

C)
 Positive  Negative  Nonreal Complex 111003\begin{array}{c|c|c}\text { Positive } & \text { Negative } & \text { Nonreal Complex } \\\hline 1 &1 & 1 \\0 & 0 & 3\end{array}

D)
 Positive  Negative  Nonreal Complex 210012\begin{array}{c|c|c}\text { Positive } & \text { Negative } & \text { Nonreal Complex } \\\hline 2 & 1 & 0 \\0 & 1 & 2\end{array}

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