Completing the Square by Boxed Rockets

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

2 x^{2} - 2 x - 6

2 {(x - \frac{1}{2})}^{2} - \frac{13}{2}

5 x^{2} + 10 x + 6

5 {(x + 1)}^{2} + 1

4 x^{2} + 11 x - 6

4 {(x + \frac{11}{8})}^{2} - \frac{217}{16}

2 x^{2} - 9 x - 3

2 {(x - \frac{9}{4})}^{2} - \frac{105}{8}

5 x^{2} + 14 x + 9

5 {(x + \frac{7}{5})}^{2} - \frac{4}{5}

3 x^{2} + 14 x - 5

3 {(x + \frac{7}{3})}^{2} - \frac{64}{3}