Solve the Equation $$x ^ { 6 } + 9 = 9 x ^ { 4 } + x ^ { 2 }$$

question 214

Multiple Choice

Solve the equation.
- $$x ^ { 6 } + 9 = 9 x ^ { 4 } + x ^ { 2 }$$

• A) \(\{ - 3,3 , - i , i \}\)
• B) \(\{ - 3,3 , - 1,1 \}\)
• C) \(\{ - 3,3 , - 1,1 , - 3 i , 3 i \}\)
• D) \(\{ - 3,3 , - 1,1 , - i , i \}\)

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