Quadratic Formula by Boxed Rockets

Use the Quadratic Formula to Solve with Surds.

x^{2} - 8 x - 9 = 0

x = 9 or -1

x^{2} - 14 x - 2 = 0

x = 7 \pm \sqrt{51}

x^{2} + 6 x + 7 = 0

x = -3 \pm \sqrt{2}

x^{2} + 4 x - 6 = 0

x = -2 \pm \sqrt{10}

x^{2} - 9 x - 9 = 0

x = \frac{9 \pm 3 \sqrt{13}}{2}

x^{2} - 12 x - 1 = 0

x = 6 \pm \sqrt{37}