January 6th, 2014, 10:47 AM  #1 
Senior Member Joined: May 2012 Posts: 205 Thanks: 5  factor
Hello, can someone show me steps to factor: 2x^3 9x^2 11x +30 Thank you. 
January 6th, 2014, 11:32 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs  Re: factor
Can you use the rational roots theorem to find a rational root, and then use division to obtain a linear and quadratic factor?

January 6th, 2014, 01:06 PM  #3 
Senior Member Joined: May 2012 Posts: 205 Thanks: 5  Re: factor
yes. wish there was an easier way 
January 6th, 2014, 03:09 PM  #4  
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs  Re: factor Quote:
2x^3 9x^2 11x +30 = 2x^3 10x^2 + x^2  5x 6x +30 = 2x^2(x  5) + x(x  5)  6(x  5) = (x  5)(2x^2 + x  6) = (x  5)(2x  3)(x + 2)  

Tags 
factor 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
factor x^5+x+1  Albert.Teng  Algebra  7  June 16th, 2012 04:30 AM 
How to factor 3*(x^4) + 4*(x^3)  3  daigo  Algebra  3  June 14th, 2012 05:38 PM 
Help Factor this?  HellBunny  Algebra  3  February 18th, 2012 10:31 AM 
how can these to be factor?  haebin  Calculus  2  September 14th, 2009 09:25 PM 
Factor x^4 + 1  profetas  Algebra  3  August 25th, 2009 09:20 AM 