Question

Solve
${x}^{2} - \sqrt{3} x - 18 = 0$

Answer 1

$b {}^{2} - 4ac = \sqrt{3 {}^{2} } - 4 \times 1 \times - 18 \\ = 3 + 72 \\ = 75 \\ \frac{ - \sqrt{3} + - \sqrt{75} }{2} \\ =$