Use the Quadratic Formula to Solve the Equation $$\frac { z ^ { 2 } } { 2 } = \frac { z } { 7 } + \frac { 9 } { 14 }$$

question 165

Multiple Choice

Use the quadratic formula to solve the equation.
- $$\frac { z ^ { 2 } } { 2 } = \frac { z } { 7 } + \frac { 9 } { 14 }$$

• A) \(\left\{ - \frac { 9 } { 7 } , - 1 \right\}\)
• B) \(\left\{ - 1 , \frac { 9 } { 7 } \right\}\)
• C) \(\left\{ - \frac { 9 } { 7 } , 1 \right\}\)
• D) \(\left\{ \frac { 9 } { 7 } \right\}\)

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