Use Descartes' Rule of Signs to Determine the Possible Number

question 9

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of f(x) = 6x³ + 3x² + 3x + 4.

• A)no positive reals;no negative reals
• B)1 positive real;3 negative reals or 1 negative real
• C)0 positive real;3 negative reals or 1 negative real
• D)3 positive reals or 1 positive real;no negative reals
• E)3 positive reals or 1 positive real;3 negative reals or 1 negative real

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