• Announcements: Today's lecture consists of 3 short videos, that you can watch or download below. The software used is Wolfram Mathematica, which CUNY students can download and use for free (instructions were sent to you by email). The first homework assignment covers today's topics and will be posted shortly on Blackboard; it is due on Tuesday (Feb 6) by 11.59pm.

• Video 1: Factoring some polynomials
Download file or watch below

• Video 2: Plots
Download file or watch below

• Video 3: Limits
Download file or watch below