K kr73114 Member Joined Aug 6, 2009 Messages 373 Gender Male HSC 2011 Dec 14, 2009 #1 when a is not 1 2x^2+11x+12
gurmies Drover Joined Mar 20, 2008 Messages 1,207 Location North Bondi Gender Male HSC 2009 Dec 14, 2009 #2 2x^2 + 11x + 12 2(x^2 + 11x/2) + 12 2(x + 11/4)^2 + 12 - 121/8 2(x + 11/4)^2 -25/8
