(x+4)/2x What is the domain? When I solved the problem, I got that x is not equal to 0.. my book says that x is not equal to -4 and 0. I don't understand.. The original problem is:
(2/x)•(4/x+4) If anyone can either verify that my book is wrong, or explain why -4 doesn't work either (because my calculator says it does) that would be awesome. Thanks!
Professor: Except when x is 0.. 2*0 is 0.. 0 cannot be in the denominator. Right??
(2/x)•(4/x+4) If anyone can either verify that my book is wrong, or explain why -4 doesn't work either (because my calculator says it does) that would be awesome. Thanks!
Professor: Except when x is 0.. 2*0 is 0.. 0 cannot be in the denominator. Right??