Quadratic Formula by Boxed Rockets

Use the Quadratic Formula to Solve with Surds.

x^{2} - 10 x - 9 = 0

x = 5 \pm \sqrt{34}

x^{2} + 7 x + 9 = 0

x = \frac{-7 \pm \sqrt{13}}{2}

x^{2} + 3 x - 9 = 0

x = \frac{-3 \pm 3 \sqrt{5}}{2}

x^{2} + 7 x - 4 = 0

x = \frac{-7 \pm \sqrt{65}}{2}

x^{2} - 15 x + 6 = 0

x = \frac{15 \pm \sqrt{201}}{2}

x^{2} - 4 x - 10 = 0

x = 2 \pm \sqrt{14}