Solve by Completing the Square $$x ^ { 2 } = - 4 x + 9$$

question 138

Multiple Choice

Solve by completing the square.
- $$x ^ { 2 } = - 4 x + 9$$

• A) \(\frac { 4 + 2 \sqrt { 13 } } { 2 }\)
• B) \(\frac { - 4 \pm 2 \sqrt { 13 } } { 2 }\)
• C) \(\frac { - 4 - 2 \sqrt { 13 } } { 2 }\)
• D) \(- 4 \pm 2 \sqrt { 13 }\)

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