Finding Symbols material

GRE Quant Problem Solving
1

Can someone post a link to Greg’s video(s) where he discusses symbols? or can someone suggest a youtube video that covers this? thank you!

2

Can you elaborate on what do you mean by symbols?

3

For example: Dealing with Symbols - Functions on the GRE, GMAT and other exams - YouTube

4

cc @gregmat
I don’t think we have a class on it yet !