1. Factoring using the “T” Method Trinomials in the form of x2 + bx + c
Three-step check list:
a Trinomial
b Begins with an (invisible) one  leading coefficient is one
c Already tried #1 (common monomials)
Use this check list. If any answers are no, this is the wrong method.
If all answers are yes, follow these steps: 1. 2. 3. 4. 5.
List the factors of “c”
Find the pair whose sum is “b”
Double check the signs
Put into this framework: (x ) (x )
Check using F.O.I.L.

2. Remember to always try to factor out a common monomial first!