Name: Using the Cross-border technique @minkusbc
Uploaded: 2006-05-29T01:29:31-0400
Duration: 8 min 17 s
Description: How to cross terms over the equals sign with the help of a border guard who changes the signs of things crosssing his (or her) border. This is video 4 of 51 in the solving equation series. The next three series are Word Problems, Factoring and Graphing.

Factoring the hard trinomial using triple play @minkusbc

Uploaded August 2006 | Updated September 2026, 2 hours ago

How to use the "triple play" technique ( little bit of magic) to factor a hard trinomial. This video is the 12th out of 16 in the Factoring series. The other three series are "Solving Equations", "Word Problems" and "Graphing".

Factoring the hard trinomial using triple play

Vocabulary of graphing points and equations

Graphing 7 curves using the over/up-down table Pt. 1

Using the over/up-down table for graphing curves

Introduction to Factoring the Hard Trinomial