Solve the quadratic equation by completing the square: $\displaystyle {t}^{{2}}-{12}{t}-{29}=-{119}$ 

Give the equation after completing the square, but before taking the square root. Your answer should look like: $\displaystyle {\left({t}-{a}\right)}^{{2}}={b}$ 
The equation is:  Preview Question 6 Part 1 of 2  

Give all solutions to the equation, including any non-real solutions. The solutions are:  $\displaystyle {t}=$  Preview Question 6 Part 2 of 2