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

question 224

Multiple Choice

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

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

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