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anonymous

  • 4 years ago

When asked to find the zeros of the function r(x) = 5t3 – 8t2 + 7t + 2 which task do you complete first (Rational Root Theorem or Descartes’ Rule of Signs? Use complete sentences to explain your reasoning.

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  1. anonymous
    • 4 years ago
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    help

  2. anonymous
    • 4 years ago
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    hey,

  3. anonymous
    • 4 years ago
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    it doesn't matter which you do first....the rule of signs shows that there are either 2 positive or 0 positive roots.

  4. anonymous
    • 4 years ago
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    since the leading exponent is 3 then thee are 3 roots.

  5. anonymous
    • 4 years ago
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    the rational root theorem will use the last term and the leading term...

  6. anonymous
    • 4 years ago
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    2 which has factors of 2 and 1 and 5 which has factors of 5 and 1 therefore possible rational root would be +-2/5, +-2/1, +-1/5,+-1/1...

  7. anonymous
    • 4 years ago
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    questions?

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