Here is a problem that one of my students sent me...  Here's how I'd attack this... FOIL (2x - 5) (2x + 5) = 5 4x^2 -10x +10x - 25 = 5 4x^2 - 25 = 5 add 25 on both sides 4 x^2 = 30 Call with questions 954 646 8246 TLASteve@gmail.com |