You need to factor,Originally Posted by D@nny
1)Find all the numbers such as when multiplied give, -6.
Then you add them up,
Since the middle number in this problem is 5, the correct pair is,
That means it factors as
Note you always need to express your trinomial with the squared term first then the x terms and finally the number. And this method only works for a trinomial having a 1 in front of the x squared terms like here,
so it works.