Solution to PCE 1993 algebraic expression 

In this video we factorised an algebraic expression having difference of two squares completely using very simple and quick methods. This is very important in exams such as #jamb, post jamb, #utme, #post utme, #waec, neco, gmat, gre, ged #780 gmat, #gce, #gre math #gre quant #gre tips #jamb mathematics questions #jamb past question #jamb past questions #neco past question #pce #post utme past question