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Solve the Equation by Completing the Square x2+x+9=0x ^ { 2 } + x + 9 = 0

Question 72

Multiple Choice

Solve the equation by completing the square.
- x2+x+9=0x ^ { 2 } + x + 9 = 0


A) 1352,1+352\frac { 1 - \sqrt { 35 } } { 2 } , \frac { 1 + \sqrt { 35 } } { 2 }
B) 1i352,1+i352\frac { 1 - \mathrm { i } \sqrt { 35 } } { 2 } , \frac { 1 + \mathrm { i } \sqrt { 35 } } { 2 }
C) 1352,1+352\frac { - 1 - \sqrt { 35 } } { 2 } , \frac { - 1 + \sqrt { 35 } } { 2 }
D) 1i352,1+i352\frac { - 1 - i \sqrt { 35 } } { 2 } , \frac { - 1 + i \sqrt { 35 } } { 2 }

Correct Answer:

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