Determine the number of positive and negative real zeros the polynomial can have using Descartes rule of sign: P(x)= 2x3-x2+4x-7

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Chapter4: Polynomial And Rational Functions
Section4.CR: Chapter Review
Problem 70E
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Determine the number of positive and negative real zeros the polynomial can have using Descartes rule of sign:

P(x)= 2x3-x2+4x-7

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