Answer:
[tex]x = - 2 - \sqrt{2i} \: \: - 2 + \sqrt{2i} [/tex]
Step-by-step explanation:
[tex]1. \: x - {x}^{2} - 5x - 6 = 0 \\ 2. \: - 4x - {x}^{2} - 6 = 0 \\ 3. \: x = \frac{4 + 2 \sqrt{2i} }{ - 2} \: \: \frac{4 - 2 \sqrt{2i} }{ - 2} \\ 4. \: x = - 2 - \sqrt{2i} \: \: - 2 + \sqrt{2i} [/tex]
