The quadratic equation is
.
Solve the above quadratic equation by completing the square.
\Consider
.
Separate variables and constants aside by adding 3 to each side.
\
\ \
To change the expression into a perfect square trinomial add
to each side of the equation.
Here x coefficient =
.
So,
Add
to each side.

\ \
Take the square root of each side.
\
Add 1 to each side.
\
\ \
and 
and
. \ \
The solutions are
.