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March 29, 2017

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What does Descartes Rule of Signs tell you about the real roots of the polynomial
-2x^3+3x^3-5x-2=0
possible answers
one positive root either 2 or 0 neg
2 or 0 pos and 2 or 0 neg
one pos and one neg
either 2 or 0 pos and one neg

  • algebra - ,

    Please explain

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