SOLUTION: Please help me solve this. I have tried and can't get it. (g)/(z+g)-(g)/(z-g)=

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help me solve this. I have tried and can't get it. (g)/(z+g)-(g)/(z-g)=      Log On


   

Question 422988: Please help me solve this. I have tried and can't get it.
(g)/(z+g)-(g)/(z-g)=
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The key here is to get each denominator to the LCD (z+g)(z-g)


%28g%29%2F%28z%2Bg%29-%28g%29%2F%28z-g%29


%28g%28z-g%29%29%2F%28%28z%2Bg%29%28z-g%29%29-%28g%29%2F%28z-g%29





%28gz-g%5E2%29%2F%28%28z%2Bg%29%28z-g%29%29-%28gz%2Bg%5E2%29%2F%28%28z%2Bg%29%28z-g%29%29


%28gz-g%5E2-%28gz%2Bg%5E2%29%29%2F%28%28z%2Bg%29%28z-g%29%29


%28gz-g%5E2-gz-g%5E2%29%2F%28%28z%2Bg%29%28z-g%29%29


%28-2g%5E2%29%2F%28%28z%2Bg%29%28z-g%29%29


So %28g%29%2F%28z%2Bg%29-%28g%29%2F%28z-g%29=%28-2g%5E2%29%2F%28%28z%2Bg%29%28z-g%29%29


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Jim