Ask your own question, for FREE!
Mathematics 49 Online
OpenStudy (anonymous):

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

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!
Latest Questions
Harmonic: i miss my bf
9 minutes ago 1 Reply 0 Medals
DemonKinge: so I'm trying to figure something out is anyone on hea dating aliciaa?
12 minutes ago 49 Replies 4 Medals
marienne: guys pls i need you all to send me some good music
1 minute ago 17 Replies 1 Medal
MakaylaChuck23: how can I deal with a controlling dad (any tips?)
9 hours ago 4 Replies 1 Medal
Gucchi: chem help
13 hours ago 3 Replies 0 Medals
MakaylaChuck23: math
12 hours ago 7 Replies 0 Medals
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!