Solve the Equation by Completing the Square $$x ^ { 2 } + 9 = - x$$

question 40

Multiple Choice

Solve the equation by completing the square. Express any complex numbers using i notation.
- $$x ^ { 2 } + 9 = - x$$

• A) \(x = \frac { 1 \pm \sqrt { 35 } } { 2 }\)
• B) \(x = \frac { - 1 \pm i \sqrt { 35 } } { 2 }\)
• C) \(x = \frac { 1 \pm i \sqrt { 35 } } { 2 }\)
• D) \(x = \frac { - 1 \pm \sqrt { 35 } } { 2 }\)

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