Completing the Square by Boxed Rockets

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

2 x^{2} + 9 x + 8

2 {(x + \frac{9}{4})}^{2} - \frac{17}{8}

4 x^{2} - 12 x - 3

4 {(x - \frac{3}{2})}^{2} - 12

4 x^{2} + x - 8

4 {(x + \frac{1}{8})}^{2} - \frac{129}{16}

2 x^{2} - 10 x + 6

2 {(x - \frac{5}{2})}^{2} - \frac{13}{2}

3 x^{2} + 14 x + 10

3 {(x + \frac{7}{3})}^{2} - \frac{19}{3}

3 x^{2} - 8 x + 2

3 {(x - \frac{4}{3})}^{2} - \frac{10}{3}