Completing the Square by Boxed Rockets

Write the following in the form ${(x + a)}^{2} + b$

x^{2} + 11 x - 10

{(x + \frac{11}{2})}^{2} - \frac{161}{4}

x^{2} + 8 x - 2

{(x + 4)}^{2} - 18

x^{2} + 9 x + 6

{(x + \frac{9}{2})}^{2} - \frac{57}{4}

x^{2} - x - 10

{(x - \frac{1}{2})}^{2} - \frac{41}{4}

x^{2} - 9 x + 1

{(x - \frac{9}{2})}^{2} - \frac{77}{4}

x^{2} - 10 x - 2

{(x - 5)}^{2} - 27