Use Descartes' Rule of Signs to Determine the Possible Number $f ( x ) = 3 x ^ { 7 } - 6 x ^ { 4 } + x + 5$

question 68

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the polynomial
function.
- $f ( x ) = 3 x ^ { 7 } - 6 x ^ { 4 } + x + 5$

• A)2 or 0 positive zeros, 2 or 0 negative zeros
• B)3 or 1 positive zeros, 3 or 1 negative zeros
• C)2 or 0 positive zeros, 1 or 0 negative zeros
• D)2 or 0 positive zeros, 1 negative zero

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