Can't get enough of Sal factoring simple quadratics? Here's a handful of examples just for you!. Factoring quadratics by grouping. AboutTranscript. Sal factors 4y^2+4y as (2y -3)(2y+5) by. MIT grad shows how to solve any quadratic equation by factoring. To skip to the shortcut trick, go to time. Test prep SAT MCAT GMAT IIT JEE NCLEX-RN CAHSEE. We have a first degree term. So let's just think about what a and b can be. So we know that all these, the products are Since these opposite-signed numbers will be adding to 1I need the two factors to be one unit apart. In this case, I still app geld factors of opposite signs, but now I want them to be five units apart, and the larger factor will get the "minus" sign.