## 4.1 Factoring Using the Greatest Common Factor

Lesson on factoring expressions using their Greatest Common Factor. Expressions can be factored out with many factors. By definition of GCF, using the highest factor among the expressions is much suitable to simplify expressions.

- 3:50 2x + 8
- 4:32 9y - 3
- 4:54 5x + 15y - 25
- 5:12 12m^2 - 5y^2 z
- 5:37 144abc + 24a^2 b^3 c^5