Find All Complex Zeros of the Polynomial Function $$f ( x ) = x ^ { 4 } - 21 x ^ { 2 } - 100$$

question 283

Multiple Choice

Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.
- $$f ( x ) = x ^ { 4 } - 21 x ^ { 2 } - 100$$

• A) \(- 2 \mathrm { i } , 2 \mathrm { i } , 10 \mathrm { i } , - 10 \mathrm { i }\)
• B) \(- 2 \mathrm { i } , 2 \mathrm { i } , 10 , - 10\)
• C) \(- 2 i , 2 i , 5 i , - 5 i\)
• D) \(- 2 \mathrm { i } , 2 \mathrm { i } , 5 , - 5\)

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