What is the different between Fundamentals of Physics Extended and non extended

[wildplace]

well, i know there must be a different between them with the word "EXTENDED"
here is my problem,
my class required Fundamentals of Physics(NON EXTENDED) and i bought a Extended instead...so can i still use Fundamentals of Physics Extended instead of the non extended?? does Extended version has all information that non-extended had?
i tried to read the description from amazon.com.. but they both telling me the same things =[
thank you for all your advices :D

 

[intwo]

The extended version has extra chapters at the end of the book on Relativity, Quantum Physics, and Nuclear Physics. The rest of the content is exactly the same. =]

 

[wildplace]

thanks for your help =]
professor just being not knowledgeable ~