Question

X^2 - 8x - 9 over x^2 - 1

Answer 1

`(x^2 - 8x - 9)/(x^2 - 1)`

Graphing the two equations;

The graphs meet at point (-1,0) as attached below.

So the solution of X^2 - 8x - 9 over x^2 - 1 is:

x = -1