Find All the Zeros (Real and Complex)of the Function $f ( x ) = 3 x ^ { 4 } - 23 x ^ { 3 } + 89 x ^ { 2 } - 167 x + 78$

question 30

Multiple Choice

Find all the zeros (real and complex) of the function.
- $f ( x ) = 3 x ^ { 4 } - 23 x ^ { 3 } + 89 x ^ { 2 } - 167 x + 78$

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

---

Definitions:

Materials Purchased

The total cost or quantity of raw materials bought by a company for use in production processes.

Raw Materials Inventory

Raw materials inventory refers to the stock of raw materials on hand at any given time that are made available for use in the production process.

Fixed Costs

Expenses that do not change in total with changes in the level of production or sales, such as rent, salaries, and insurance.

Relevant Range

The range of activity within which the assumptions about variable and fixed cost behaviors remain valid.