Solve the Equation Exactly in the Complex Number System $$x ^ { 3 } + 4 x ^ { 2 } - 2 x - 8 = 0$$

question 40

Multiple Choice

Solve the equation exactly in the complex number system.
- $$x ^ { 3 } + 4 x ^ { 2 } - 2 x - 8 = 0$$

• A) \(x = - \sqrt { 4 } , x = \pm 2\)
• B) \(x = - 4 , x = \pm 2\)
• C) \(x = - 4 , x = \pm \sqrt { 2 }\)
• D) \(x = - \sqrt { 4 } , x = \pm \sqrt { 2 }\)

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