Question Analysis
This problem tests the ability to count the number of sign changes in the sequence of coefficients of a polynomial.
Key Concept Explanation
The number of sign changes in the sequence of coefficients is crucial for applying Descartes' Rule of Signs.
Step-by-step Solution
1. Identify the sequence of coefficients: -6, 7, -2, 1, -9
2. Count the sign changes: From -6 to 7 (1 cha...
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