S Stine New member Joined Nov 29, 2006 Messages 49 Nov 29, 2006 #1 Solve by factoring: x^2 - x - 72 = 0 I started by factoring it as: (x - 9)(x + 8) = 0 I am not sure where to go from here????? :?

Solve by factoring: x^2 - x - 72 = 0 I started by factoring it as: (x - 9)(x + 8) = 0 I am not sure where to go from here????? :?

tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 9,790 Nov 29, 2006 #2 If A*B = 0, what can you say about A or B?