OpenStax, Algebra and Trigonometry 2e §5.5 Zeros of Polynomial Functions · Example 10 · Algebra · Polynomials

Using Descartes’ Rule of Signs

Use Descartes’ Rule of Signs to determine the possible numbers of positive and negative real zeros for $f (x) = - x^{4} - 3 x^{3} + 6 x^{2} - 4 x - 12.$

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OpenStax, Algebra and Trigonometry 2e · §5.5 Zeros of Polynomial Functions · Example 10

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