Visit http://ilectureonline.com for more math and science lectures!

To donate:
http://www.ilectureonline.com/donate
https://www.patreon.com/user?u=3236071

We will learn how to find the multiple choice answer (using elimination and reasoning) to factoring: a^2-ab-3a-6b^2+9b (Part 1)

Next video in this series can be seen at:
https://youtu.be/oed-IJKjtt0