Find All the Zeros (Real and Complex)of the Function $f ( x ) = x ^ { 4 } - 12 x ^ { 2 } - 64$

question 36

Multiple Choice

Find all the zeros (real and complex) of the function.
- $f ( x ) = x ^ { 4 } - 12 x ^ { 2 } - 64$

• A) \(- 2 \mathrm { i } , 2 \mathrm { i } , 8 \mathrm { i } , - 8 \mathrm { i }\)
• B) \(- 2 \mathrm { i } , 2 \mathrm { i } , 4 , - 4\)
• C) \(- 2 \mathrm { i } , 2 \mathrm { i } , 4 \mathrm { i } , - 4 \mathrm { i }\)
• D) \(- 2 \mathrm { i } , 2 \mathrm { i } , 8 , - 8\)

Identify the types of correlation (positive, negative) and their implications in real-life contexts.

Familiarize oneself with legal and ethical considerations in testing, including rights to access educational records and the implications of various acts like FERPA and ADA.

Recognize the role of expert judgment in determining test validity.

Understand the importance of non-correlation between different constructs to maintain test integrity.

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