Factoring Trinomials by Decomposition (w/ 3 examples) | Lulumath
We'll teach you how to factor by decomposition with full understanding and less memorization in less than 20 minutes. Watch now.
IMPORTANT TIMESTAMPS:
0:00 Introduction and background knowledge
0:31 A binomial expansion to explore our understanding of decomposition
2:16 Example 1 - Factoring the same expression!
7:40 Example 2
13:34 Example 3
Factoring trinomials is pretty much undoing the multiplication of a binomial by a binomial. We are going to explore how we can take our understanding of multiplying binomials to get a trinomial result and work backwards to determine how to factor that result. Factoring by decomposition uses factoring by grouping. Although a list of steps is provided,
Download full notes from this video along with practice worksheets at https://www.lulumath.com
BACKGROUND INFORMATION:
Multiplying Binomials Using FOIL: • How to Multiply a Binomial by a Binomial (...
Multiplying Binomials Using the Box Method: • How to Multiply Binomials (Box Method) | P...
Factoring by Grouping: • How to Factor by Grouping (w/ Examples) | ...
RELATED VIDEOS:
Factoring by Trial and Error (unFOIL): • Factoring Trinomials by Trial and Error (u...
Factoring by Trial and Error (Box Method): • Factoring Trinomials by Trial and Error (B...
Factoring Trinomials With More Than One Variable: • Factoring Trinomials With More Than One Va...
Factoring Perfect Square Trinomials: • Factoring Perfect Square Trinomials | Fact...
Why Multiply "a" by "c" When Factoring Using Decomposition: • BONUS: Why We Multiply "a" by "c" When Fac...
FOLLOW-UP VIDEO:
Factoring Completely: • Factoring Completely: The COMPLETE Guide (...
Was this useful for you? Comment below with feedback or any questions. We'd love to hear from you.
Don't forget to subscribe and share with others.
What is Lulumath?
Lulumath is a resource created by a seasoned math teacher with the hopes of sharing high quality education and knowledge with anyone interested in the subject of mathematics. Fresh content is produced every week. Get to the top of your class with these free online math videos and resources.