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Use the Quadratic Formula to Solve the Equation 3x27x1=03 x ^ { 2 } - \sqrt { 7 } x - 1 = 0

Question 241

Multiple Choice

Use the quadratic formula to solve the equation.
- 3x27x1=03 x ^ { 2 } - \sqrt { 7 } x - 1 = 0


A) 7i56,7+i56\frac { \sqrt { 7 } - i \sqrt { 5 } } { 6 } , \frac { \sqrt { 7 } + i \sqrt { 5 } } { 6 }
B) 7196,7+196\frac { - \sqrt { 7 } - \sqrt { 19 } } { 6 } , \frac { - \sqrt { 7 } + \sqrt { 19 } } { 6 }
C) 7196,7+196\frac { \sqrt { 7 } - \sqrt { 19 } } { 6 } , \frac { \sqrt { 7 } + \sqrt { 19 } } { 6 }
D) 7616,7+616\frac { \sqrt { 7 } - \sqrt { 61 } } { 6 } , \frac { \sqrt { 7 } + \sqrt { 61 } } { 6 }

Correct Answer:

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