The equation is
.
Rewrite the equation is
.
Apply formula:
.


(Subtract 4 from each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
Take square root each side. \ \
\
(
)
Apply formula:
.



Subtract 2 from each side.
\


Add 2 to each side.
\

The equation has two imaginary roots,
and two real roots 2,
2.
The solution is two imaginary roots,
and two real roots 2,
2.