Find All Complex Zeros of the Polynomial Function $$f ( x ) = x ^ { 4 } - 10 x ^ { 3 } + 23 x ^ { 2 } - 10 x + 22$$

question 120

Multiple Choice

Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.
- $$f ( x ) = x ^ { 4 } - 10 x ^ { 3 } + 23 x ^ { 2 } - 10 x + 22$$

• A) \(i , - i , 1 + \sqrt { 3 } , 1 - \sqrt { 3 }\)
• B) i, \(- \mathrm { i } , 5 + 2 \sqrt { 3 } , 5 - 2 \sqrt { 3 }\)
• C) \(\mathrm { i } , - \mathrm { i } , 5 + \sqrt { 3 } , 5 - \sqrt { 3 }\)
• D) \(\mathrm { i } , - \mathrm { i } , - 5 + \sqrt { 3 } , - 5 - \sqrt { 3 }\)

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Definitions:

Conversion Cost

Direct labor cost plus manufacturing overhead cost.

Equivalent Unit

A measure used in cost accounting to express the amount of work done on a product in terms of fully completed units.

Weighted-Average Method

A process costing method that calculates unit costs by combining costs and outputs from the current and prior periods.

Percentage Completion

A measure used in accounting and project management to indicate the progress of projects or production, based on the completion percentage of the total work.