Solve
- $$x ^ { 4 } - 17 x ^ { 2 } + 16 = 0$$

question 158

Multiple Choice

Solve.
- $$x ^ { 4 } - 17 x ^ { 2 } + 16 = 0$$

• A) \(\{ - i , i , - 4 i , 4 i \}\)
• B) \(\{ 1,16 \}\)
• C) \(\{ - 1,1 , - 4,4 \}\)
• D) \(\{ - 1,1 , - 4 i , 4 i \}\)

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