SOLUTION: Please help me. The question says to add and simplify when possible. [8z/(z^2-1)]+z/(z-1). Any help would be greaty appreciated.

Question 545438: Please help me. The question says to add and simplify when possible. [8z/(z^2-1)]+z/(z-1). Any help would be greaty appreciated.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
+
Note the z^2 - 1, is the difference of squares, and can be factored to:
+
this will be our common denominator and we have
= =