Completing the Square by Boxed Rockets

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

x^{2} + 5 x - 9

{(x + \frac{5}{2})}^{2} - \frac{61}{4}

x^{2} + 7 x - 1

{(x + \frac{7}{2})}^{2} - \frac{53}{4}

x^{2} - 8 x - 5

{(x - 4)}^{2} - 21

x^{2} - 8 x + 3

{(x - 4)}^{2} - 13

x^{2} + 4 x + 9

{(x + 2)}^{2} + 5

x^{2} - 3 x + 3

{(x - \frac{3}{2})}^{2} + \frac{3}{4}