Factor
If the has no coefficient ( the whole number before it) means it is (you can write as ), you can follow these steps:
First term is : we know that the factor of is times
Last term : , we know that the factor of is times .
Middle term : if you the factors of the term, you must get the of the middle term.
If you add or , which is the middle term.
Our factor is
use same approach to do other similar problems