Question
Suppose that the polynomial function \( f \) is defined as follows. \[ f(x)=(x-11)(x-9)(x+4)^{2}(x+11) \] List each zero of \( f \) according to its multiplicity in the categories below. If there is more than one answer for a multiplicity, separate them with commas. \( \begin{array}{l}\text { zero(s) of multiplicity one: } \\ \text { zero(s) of multiplicity two: } \\ \text { zero(s) of multiplicity three: }\end{array} \)
Ask by Black Macdonald. in the United States
Feb 25,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Zero(s) of multiplicity one: 11, 9, -11
Zero(s) of multiplicity two: -4
Zero(s) of multiplicity three:
Solution
We are given the function
f(x) = (x - 11)(x - 9)(x + 4)²(x + 11).
Step 1: Find all the zeros.
• x - 11 = 0 ⟹ x = 11
• x - 9 = 0 ⟹ x = 9
• x + 4 = 0 ⟹ x = -4 (with multiplicity 2 since the factor is squared)
• x + 11 = 0 ⟹ x = -11
Step 2: Identify the multiplicities.
• 11 appears once → multiplicity one.
• 9 appears once → multiplicity one.
• -11 appears once → multiplicity one.
• -4 appears twice → multiplicity two.
Arranging the zeros in the required categories:
Zero(s) of multiplicity one: 11, 9, -11
Zero(s) of multiplicity two: -4
Zero(s) of multiplicity three:
(empty, as none have multiplicity three)
Answered by UpStudy AI and reviewed by a Professional Tutor
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The Deep Dive
The polynomial function \( f(x) \) has the following zeros according to their multiplicity: - **Zero(s) of multiplicity one:** \( 11, 9, -11 \) - **Zero(s) of multiplicity two:** \( -4 \) - **Zero(s) of multiplicity three:** (none)