Complete the square to transform the expression x^2 + 4x + 2 into the form a(x - h)^2 + k.
I think it is (x+2)^2 - 2
x2 + 4x +2
(x2 + 4x ) + 2
(x2 + 4x + 4) + 2 - 4
(x + 2)2 - 2
a = 1
h = -2
k = -2
