If Bella wanted to solve the equation below by completing the square, which answer shows the correct sequence of steps? x2 12x + 4 = 0 Add 12x + 4 to both sides, then square root both sides. Isolate the constant, find (b2)2 , add 36 to both sides, factor the trinomial, then square root both sides and simplify. Isolate the constant, find (b2)2 , add 6 to both sides, square root both sides, then factor the trinomial and simplify. This trinomial cannot be solved by completing the square