Completing the Square by Boxed Rockets

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

3 x^{2} + 4 x + 8

3 {(x + \frac{2}{3})}^{2} + \frac{20}{3}

4 x^{2} - 13 x - 7

4 {(x - \frac{13}{8})}^{2} - \frac{281}{16}

3 x^{2} - 6 x + 2

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

3 x^{2} + 11 x - 7

3 {(x + \frac{11}{6})}^{2} - \frac{205}{12}

2 x^{2} - 10 x + 2

2 {(x - \frac{5}{2})}^{2} - \frac{21}{2}

2 x^{2} - 12 x - 4

2 {(x - 3)}^{2} - 22