Factoring Quadratics - The Cross Method

In this video I go over a quick trick for factoring non-monic trinomials (quadratic scenarios where 'a' is not 1). This method is called The Cross Method and it's a quick trick - I still think it's important to understand how factoring works. 0:00 Intro 0:54 Example 1 (two positives) 2:53 Example 2 (pos. & neg.) 5:18 Example 3 (two negatives) 6:43 Example 4 (neg. & pos.)