1. 13.1 Factoring Greatest Common Monomials with Algebra Tiles

2. Prerequisite Understandings Area Models A = l x w How to build rectangles with dimensions other than 1.

3. Factoring Out Greatest Common Monomial 3x + 12 3(x + 4)

4. Factoring Out Greatest Common Monomial Model the following: 3x + 9 3(x + 3) 10x + 5 5(2x + 1) 6x – 3 3(2x – 1) -2x – 8 -2(x + 4)

5. Factoring Out Greatest Common Monomial 2x 2 + 6x 2x 2 + 6x 2x(x + 3)

6. Factoring Out Greatest Common Monomial Model the following: x 2 + 4x x(x + 4) 4x 2 + 6x 2x(2x + 3) -6x 2 – 2x -2x(3x + 1) -4x 2 + 12x -4x(x – 3)