The function is
.
The factors are
and
.
Perform the synthetic division method to test each factor.
\Synthetic division for factor
.
Rewrite the division expression so that the divisor is in the form of
.


The obtained divisor is
.
Now the divisor is in the form of
.

.

When
is divided by
, the remainder is
.
So
is a factor of
.
The depressed polynomial is
.
The obtained depressed polynomial is
.
Now test the second factor
with the depressed polynomial
.
Synthetic division for factor
.

When
is divided by
, the remainder is
.
So
is a factor of
.
The remaining quadratic factor is
which can be written as
.
The quotient in factored form is
or
.
and
are the factor of the polynomial. \ \
The factored form of the polynomial is
. \ \