What are the solutions of 3x2 + 6x + 6 = 0

-2 ± i

-2 ± 2i

-1 ± i

1 ± i

C) Quick way:

3x^2+6x+6=0 - - - > x^2+2x+2=0,

sum of solutions is the 'x' coefficient multiplied by - 1: (-1+i) + (-1-i) = - 2-->2

Product is the independent term: (-1+i) (=1+i) = (-1) ^2-i^2 = 1+1=2

Takes longer to write it down!