Descartes' Rule of Signs?

  • Thread starter Thread starter Irish Pimp
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Irish Pimp

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Use Descartes' Rule of Signs to analyze the zeros of the following. List all possibilities.

P(x) = x5 - 4x4 + 3x3 + 2x - 6

P(x) = -5x4 + x3 + 2x2 - 1

P(x) = 2x5 + 7x3 + 6x2 - 2
 
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