\left\{ \begin{array} { l } { \frac { 1 } { 2 } a = - \frac { 1 } { 2 } ( a + 5 ) ( a - m ) } \\ { - \frac { 1 } { 2 } a = - \frac { 1 } { 2 } ( - a + 5 ) ( - a - m ) } \end{array} \right.
Solve for a, m
a=0\text{, }m=0
a=-\sqrt{30}\approx -5.477225575\text{, }m=6
a=\sqrt{30}\approx 5.477225575\text{, }m=6
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