To determine the incorrect root of the polynomial.
Option
Given:
The following roots are given:
Interpretation:
According to the complex conjugate theorem, if
Now, simplify the given complex root as:
It is given that the other complex root is
Now, according to irrational root theorem, if
It is given that the two irrational roots are
As one of the roots of the polynomial is incorrect. So, the given root
Chapter 6 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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