Question

How do you simplify `(5x - 25) / (x^2 - 25)` and what are the restrictions?

Answer 1

`(5x-25)/(x^2-25)`

`=(5(x-5))/{(x+5)(x-5)}`

`=5/((x+5))*((x-5))/((x-5))`

`=5/((x+5))*1`

`=5/(x+5)`