## anonymous one year ago find the domain for the below equation

1. anonymous

$\frac{ x-5 }{ x^2-9}$

2. Loser66

Solve for x of $$x^2-9$$, what do you get?

3. anonymous

(x+3)(x-3)

4. anonymous

@Loser66 is that right?

5. anonymous

@kropot72 @Katherine2016

6. anonymous

@shabbaranks what?

7. anonymous

options are all real numbers except 9, all real numbers except 3 and -3, all positive real numbers, all real numbers except 5 and 9

8. anonymous

thank you

9. Loser66

hence if x =3 or x =-3, the denominator =0, that is domain is all real number except those guys.