Solve the Equation Exactly in the Complex Number System $$x ^ { 3 } + 7 x ^ { 2 } + 25 x + 175 = 0$$

question 135

Multiple Choice

Solve the equation exactly in the complex number system.
- $$x ^ { 3 } + 7 x ^ { 2 } + 25 x + 175 = 0$$

• A) \(x = - 7 , x = \pm 5 i\)
• B) \(x = - 5 i , x = \pm 7 i\)
• C) \(x = - 7 i , x = \pm 5 i\)
• D) \(x = - 5 , x = \pm 7 i\)

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