Complete the square for 3x2+12x−7=03x^2 + 12x - 7 = 03x2+12x−7=0. Which form is equivalent?
(x+2)2=193(x+2)^2 = \frac{19}{3}(x+2)2=319
3(x+2)2=193(x+2)^2 = 193(x+2)2=19
(3x+6)2=19(3x+6)^2 = 19(3x+6)2=19
(x+2)2=19(x+2)^2 = 19(x+2)2=19