A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Can someone tell me if this answer is correct or not?
anonymous
 one year ago
Can someone tell me if this answer is correct or not?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What are the factors of x2  81? I put prime

nikato
 one year ago
Best ResponseYou've already chosen the best response.2IM BACK! haha and no, its not prime.

nikato
 one year ago
Best ResponseYou've already chosen the best response.2its a special kind called difference of square. see how 81 is a perfect square because 9^2=81

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ah, okay, so would the answer be (x9) (x9) then?

nikato
 one year ago
Best ResponseYou've already chosen the best response.2(x9)(x+9) remember with difference of squares theres is one  and the other is +

nikato
 one year ago
Best ResponseYou've already chosen the best response.2and you can check. (x9)(x9)= x^2 18x+81

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I did (x9)(x+9) and that didn't work for me. Are you sure? I got x^29x+9x81 After this point I had to either add the 9 to itself and positive 9 or the other way around which wouldn't equal x^2=81

Pawanyadav
 one year ago
Best ResponseYou've already chosen the best response.0x^2y^2= (x+y)(xy) always. In your question y=9.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Wait so do you always have to cross out the two x that isn't squared or cubed?

nikato
 one year ago
Best ResponseYou've already chosen the best response.2ys. because they cancel each other. they add up to 0

nikato
 one year ago
Best ResponseYou've already chosen the best response.2well, only in this problem

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ooooh, okay. That makes allot more sense now. Haha, thanks for telling me.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.