Factoring ax2 + bx + c = 0 a is not 1 Swing & Divide
I can factor trinomials using Swing and Divide Method Objectives I can factor trinomials using Swing and Divide Method
Factoring a Trinomial When factoring an expression with 3 terms you will always get two factors x2 + bx + c
Swing and Divide Method The Swing & Divide method is very similar to Reverse FOIL, but with 2 extra steps: You can use this method when the number in front of the x2 term is not 1 EX: 2x2 – x - 3
Don’t do one without doing the 2nd Swing & Divide 2 Steps: Swing and factor Divide Don’t do one without doing the 2nd
Swing & Divide Method Swing Final Factors Divide by Swing # Now use FOIL Divide by Swing #
Always reduce fractions before finding final factors Reducing and Checking Always reduce fractions before finding final factors
Example 2 Swing Final Factors Now use FOIL Divide by Swing #
Example 3 Swing Reduce Final Factors Now use FOIL Divide by Swing #
Practice 1
Practice 2
Practice 3