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Use the Quadratic Formula to Solve the Equation 5x2+7x+9=05 x ^ { 2 } + 7 x + 9 = 0

Question 224

Multiple Choice

Use the quadratic formula to solve the equation.
- 5x2+7x+9=05 x ^ { 2 } + 7 x + 9 = 0


A) {713110,7+13110}\left\{ \frac { - 7 - \sqrt { 131 } } { 10 } , \frac { - 7 + \sqrt { 131 } } { 10 } \right\}
B) {7i13110,7+i13110}\left\{ \frac { 7 - \mathrm { i } \sqrt { 131 } } { 10 } , \frac { 7 + \mathrm { i } \sqrt { 131 } } { 10 } \right\}
C) {7i13110,7+i13110}\left\{ \frac { - 7 - \mathrm { i } \sqrt { 131 } } { 10 } , \frac { - 7 + \mathrm { i } \sqrt { 131 } } { 10 } \right\}
D) {713110,7+13110}\left\{ \frac { 7 - \sqrt { 131 } } { 10 } , \frac { 7 + \sqrt { 131 } } { 10 } \right\}

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