Homework Help: algebra

Posted by jayson on Monday, November 12, 2012 at 8:53pm.

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 - jayson, Tuesday, November 13, 2012 at 10:05am
Please explain

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