Simplify each expression and state any non-permissible values. ( 3 marks - show your work)

x/x^2-3x-4 - 4/x+1

Alex, yesterday I pointed out to you how important it is to include brackets in this format of typing your questions.

http://www.jiskha.com/display.cgi?id=1420682753
You have ignored this and continue to type in this ambiguous way for your previous set of questions.

Are you surprised that nobody is answering them?