To describe : The error and correct it.
The error is in the calculation and so, the number of zeros is also wrong. The correct answer is that there are
Given information :
Descartes' Rule is used to find the number of negative real roots of
Because there is only one sign change in
Concept used:
Descartes' Rule of Signs: It is applied to find the number of positive real zeros and negative real zeros of a polynomial functions by analysing the signs of the coefficients.
Explanation :
The given polynomial is
So, there are three or one negative real roots.
Therefore, the error is in the calculation and so, the number of zeros is also wrong. The correct answer is that there are
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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