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Solve x24+x5=120\frac { x ^ { 2 } } { 4 } + \frac { x } { 5 } = \frac { 1 } { 20 }

Question 65

Multiple Choice

Solve x24+x5=120\frac { x ^ { 2 } } { 4 } + \frac { x } { 5 } = \frac { 1 } { 20 } by any method.


A) {15,1}\left\{ - \frac { 1 } { 5 } , 1 \right\}
B) {1,15}\left\{ - 1 , \frac { 1 } { 5 } \right\}
C) {15±i35}\left\{ - \frac { 1 } { 5 } \pm \frac { i \sqrt { 3 } } { 5 } \right\}
D) {15±i35}\left\{\frac{1}{5} \pm \frac{i \sqrt{3}}{5}\right.\}

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