Completing the Square by Boxed Rockets

Solve Using Completing the Square.

x^{2} - 6 x - 8 = 0

x = 3 \pm \sqrt{17}

x^{2} - 6 x - 9 = 0

x = 3 \pm 3 \sqrt{2}

x^{2} + 12 x - 5 = 0

x = -6 \pm \sqrt{41}

x^{2} + 12 x + 10 = 0

x = -6 \pm \sqrt{26}

x^{2} - 10 x + 7 = 0

x = 5 \pm 3 \sqrt{2}

x^{2} + 4 x + 3 = 0

x = -1 or -3