Question
- a. T or
A 3rd degree polynomial can have 3 non-real roots.
b. T or
has a zero with multiplicity 3.
b. T or
Ask by Huff Cruz. in the United States
Jan 22,2025
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Tutor-Verified Answer
Answer
a. False
b. True
b. True
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A 3rd degree polynomial can have a maximum of three roots, and the roots can be a mix of real and complex numbers. By the fundamental theorem of algebra, it can have either all real roots or one real root with a pair of complex conjugates. Thus, the statement is false; a 3rd degree polynomial cannot have 3 non-real roots.
The function
has a zero at
with a multiplicity of 3, because
appears three times in its factorization. Additionally, it has another zero at
with multiplicity 1. Therefore, the statement is true, confirming the nature of the roots.