Answer:
Yes, it is true that
is a factor of
.
Step-by-step explanation:
Let us try to factorize 

Let us try to make a whole square of the given terms:

--------------
Formula used above:

In the above equation, we had
.
--------------
Further solving the above equation, taking
common out of 

Taking
common out of the above term:

So, the two factors are
.
The statement that
is a factor of
is <em>True.</em>