Find All Real Zeros of the Polynomial $f ( x ) = x ^ { 4 } - 113 x ^ { 2 } + 3136$

question 45

Multiple Choice

Find all real zeros of the polynomial $f ( x ) = x ^ { 4 } - 113 x ^ { 2 } + 3136$ and determine the multiplicity of each.

• A)x = 49,multiplicity 2;x = 64,multiplicity 2
• B)x = 7,multiplicity 2;x = 8,multiplicity 2
• C)x = 49,multiplicity 2;x = 8,multiplicity 1
• D)x = -7,multiplicity 2;x = -8,multiplicity 2
• E)x = 7,multiplicity 1;x = -7,multiplicity 1;x = 8,multiplicity 1;x = -8,multiplicity 1

---

Definitions:

Activity Duration

the total time required to complete a specific activity or task in the process of project management or planning.

Beta Distribution

A statistical distribution representing probabilities of outcomes across a range of 0 to 1, often used in Bayesian statistics for estimating unknown parameters.

PERT Analysis

A project management tool used to schedule, organize, and coordinate tasks within a project, which stands for Program Evaluation and Review Technique.

Expected Activity Times

Predicted durations for tasks or activities within a project, often based on historical data and used in planning and scheduling.