Solve the Equation by Completing the Square $$x ^ { 2 } - 8 x - 7 = 0$$

question 343

Multiple Choice

Solve the equation by completing the square.
- $$x ^ { 2 } - 8 x - 7 = 0$$

• A) \(\{ 4 - \sqrt { 23 } , 4 + \sqrt { 23 } \}\)
• B) \(\{ 4 - \sqrt { 7 } , 4 + \sqrt { 7 } \}\)
• C) \(\{ - 4 - \sqrt { 23 } , - 4 + \sqrt { 23 } \}\)
• D) \(\{ 8 - \sqrt { 71 } , 8 + \sqrt { 71 } \}\)

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Existential Import

The implication that a statement has concerning the existence of the subjects it mentions.

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