Solve $u ^ { 2 } - 7 u - 4 = 0$

question 1

Multiple Choice

Solve $u ^ { 2 } - 7 u - 4 = 0$ by completing the square, if possible.

• A) \(y = \frac { \sqrt { 65 } } { 2 } , y = - \frac { \sqrt { 65 } } { 2 }\)
• B) \(y = \frac { 7 } { 2 } + \frac { \sqrt { 65 } } { 2 } , y = \frac { 7 } { 2 } - \frac { \sqrt { 65 } } { 2 }\)
• C) \(y = 7 + \frac { \sqrt { 65 } } { 2 } , y = 7 - \frac { \sqrt { 65 } } { 2 }\)
• D) \(y = - \frac { 7 } { 2 } + \frac { \sqrt { 65 } } { 2 } , y = - \frac { 7 } { 2 } - \frac { \sqrt { 65 } } { 2 }\)
• E)no solutions

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