\left\{ \begin{array} { l } { y = - \frac { \sqrt { 3 } } { 3 } ( x - 4 ) } \\ { x ^ { 2 } + y ^ { 2 } - \frac { \sqrt { 5 } } { 2 } x + \frac { \sqrt { 3 } } { 2 } y = 0 } \end{array} \right.
Solve for y, x (complex solution)
x=\frac{-i\sqrt{1002-114\sqrt{5}}+3\sqrt{5}+19}{16}\approx 1.606762746-1.708307197i\text{, }y=\frac{i\sqrt{3006-342\sqrt{5}}}{48}+\frac{15\sqrt{3}}{16}-\frac{\sqrt{15}}{16}\approx 1.381736173+0.98629162i
x=\frac{3\sqrt{5}+19+i\sqrt{1002-114\sqrt{5}}}{16}\approx 1.606762746+1.708307197i\text{, }y=-\frac{i\sqrt{3006-342\sqrt{5}}}{48}+\frac{15\sqrt{3}}{16}-\frac{\sqrt{15}}{16}\approx 1.381736173-0.98629162i
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