Completing the Square by Boxed Rockets

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

x^{2} - 4 x + 3

{(x - 2)}^{2} - 1

x^{2} + 9 x - 5

{(x + \frac{9}{2})}^{2} - \frac{101}{4}

x^{2} - 9 x - 4

{(x - \frac{9}{2})}^{2} - \frac{97}{4}

x^{2} + 14 x + 1

{(x + 7)}^{2} - 48

x^{2} - 10 x + 7

{(x - 5)}^{2} - 18

x^{2} + 13 x - 10

{(x + \frac{13}{2})}^{2} - \frac{209}{4}