Answer:
x = -2±√-2
Step-by-step explanation:
y = x^2+4x+6
x^2+4x+6=0
move the constant to the right
x^2+4x=-6
add the square of 1/2 of the x variable to both sides
1/2 of 4 is 2
x^2+4x+2^2=-6+4
x^2+2^2=-2
(x+2)^2=-2
square both sides
x+2=±√-2
x=-2±√-2
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