Find All Complex Zeros of the Polynomial Function $$f ( x ) = x ^ { 4 } - 32 x ^ { 2 } - 144$$

Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.
- $$f ( x ) = x ^ { 4 } - 32 x ^ { 2 } - 144$$

A) $- 2 i , 2 i , 6 i , - 6 i$
B) $- 2 \mathrm { i } , 2 \mathrm { i } , 12 , - 12$
C) $- 2 i , 2 i , 6 , - 6$
D) $- 2 i , 2 i , 12 i , - 12 i$

Correct Answer:

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