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kiara23 Group Title

if we asked to find the zero function r(t)=5t3-8t2+7t +2 which task would you complete first - rational root theorem and descartes' rule signs ?

  • 2 years ago
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  1. Mertsj Group Title
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    I would use descartes' rule of signs first.

    • 2 years ago
  2. kiara23 Group Title
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    why please

    • 2 years ago
  3. Mertsj Group Title
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    Because if Descartes shows me that there are no positive roots then I wouldn't try any positive numbers as a result of the rational roots theorem.

    • 2 years ago
  4. kiara23 Group Title
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    good answer ! thank you

    • 2 years ago
  5. Mertsj Group Title
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    yw

    • 2 years ago
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