\left\{ \begin{array} { l } { \alpha ^ { 2 } = 4 \alpha + 3 } \\ { \beta ^ { 2 } = 4 \beta + 3 } \end{array} \right.
Solve for α, β
\alpha =2-\sqrt{7}\approx -0.645751311\text{, }\beta =2-\sqrt{7}\approx -0.645751311
\alpha =2-\sqrt{7}\approx -0.645751311\text{, }\beta =\sqrt{7}+2\approx 4.645751311
\alpha =\sqrt{7}+2\approx 4.645751311\text{, }\beta =2-\sqrt{7}\approx -0.645751311
\alpha =\sqrt{7}+2\approx 4.645751311\text{, }\beta =\sqrt{7}+2\approx 4.645751311
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