1. anonymous

2. anonymous

Welcome To OpenStudy!! :) Oh no! Seems you have posted in the wrong section :O Not to worry >:) Here is the link to the English http://openstudy.com/study#/groups/English Good Luck! :)

3. anonymous

lol

4. Loser66

LOL

5. anonymous

oopes wrong post haha

6. anonymous

after that silliness, the domain of any polynomial, unless otherwise stated, is "all real numbers"

7. anonymous

So it would be the second option? @satellite73

8. TheSmartOne

correct

9. anonymous

@TheSmartOne @satellite73 How would this be solved?

10. TheSmartOne

As satellite said, the domain will be all real numbers unless noted otherwise. But for this question we have to take into consideration the denominator. Can you factor the denominator?

11. anonymous

(x−3)(x+3) right? @TheSmartOne Thus it would be the second option?

12. TheSmartOne

correct, now what would happen if the denominator of any fraction is equal to 0? $$\sf\Large\frac{1}{0}=?$$

13. anonymous

It couldnt be divided so the numerator would be the same?

14. TheSmartOne

So the domain has to be all real numbers except for the values which make the denominator equal to 0

15. TheSmartOne

set each equal to 0 to find out (x−3)=0 (x+3)=0

16. anonymous

Alright, I see.