Solve the Equation $$x ^ { 4 } - 3 x ^ { 2 } - 54 = 0$$

question 48

Multiple Choice

Solve the equation.
- $$x ^ { 4 } - 3 x ^ { 2 } - 54 = 0$$

• A) \[\pm 3\]
• B) \[3 , \mathrm { i } \sqrt { 6 }\]
• C)-9, 6
• D) \[\pm 3 , \pm i \sqrt { 6 }\]

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