Ask
your own question, for FREE!

Mathematics
66 Online

OpenStudy (anonymous):

find the roots of this equation 2x^3-3x^2+12x+9=0 ?? show the procedure without using calculator??

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (shadowfiend):

Heh. This is a pretty tough one. You have to factor the equation, but I've been having some trouble doing that.

OpenStudy (anonymous):

The rational root theorem says that any rational (fractional) root of the equation will be of the form p/q, where p is a factor of 9 (so +/- 1, 3, 9) and q is a factor of 2 (so +/- 1, 2). That gives a bunch of choices to try, but they are the only choices. Use synthetic division to see which root(s) divide in to the original without a remainder.

OpenStudy (anonymous):

OpenStudy (anonymous):

I have no idea how to do this but see if this will help you. By the looks of it the root looks really ugly. http://www.wolframalpha.com/input/?i=2x^3-3x^2%2B12x%2B9

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

Aratox:
Where did the song "Moskau" originate? Does it have Russian roots, or is it just

7 minutes ago
0 Replies
0 Medals

OLIVER69:
I have a question or feedback I think should be added here. It is, "if someone is

27 minutes ago
1 Reply
0 Medals

Jenniezzz:
whatu2019s the difference between vegan and vegetarian??? ud83dude2dud83dude2dud8

42 minutes ago
3 Replies
3 Medals

xoDimez:
If your looking for cool ppl,you like jamming to music and love games join this site https://musickraze.

8 hours ago
3 Replies
1 Medal

Alexisback:
need help making a song, give me a theme, a lil sorry make one up if you want, te

6 hours ago
7 Replies
0 Medals

BeautyQueen:
yall I went to my FBLA competition in Galveston here some pictures I took gt 3rd

1 day ago
0 Replies
0 Medals