Descartes' Rule of Signs
Students will apply Descartes' Rule of Signs to determine the possible number of positive and negative real roots of a polynomial.
Key Questions
- Analyze how sign changes in a polynomial's coefficients relate to its positive real roots.
- Predict the possible number of negative real roots using Descartes' Rule of Signs.
- Justify the usefulness of this rule in narrowing down the search for real roots.
Common Core State Standards
Suggested Methodologies
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