1. Factor into pairs like in “T” Find the pair whose sum is “b”
Factor Using “T-GROUPING” Trinomials in the form of ax2 + bx + c
Three-step check list:
a Trinomial (standard form)
b Begins with a number greater than one (Leading coefficient is not one)
c Already tried #1 (common monomials)
If no, this is the wrong method.
If yes, follow these steps: 1. 2. 3. 4. 5. 6.
Multiply “a” by “c”
Factor into pairs like in “T”
Find the pair whose sum is “b”
Double check the signs
Re-write with four terms * Make center sign positive if possible!
Use Grouping method to factor (See “Grouping” notes)