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June 6th, 2016, 10:12 AM  #1 
Newbie Joined: Jun 2016 From: indiana Posts: 4 Thanks: 1  Confused with quadratic
I am a college student reviewing an algebra problem. It appears that there might be a mistake in the problem, but normally I am just missing a step. This isn't homework, just review. What I am having problems with is one step in a quadratic eq. that has me dividing 6r^248r54=0 by 6, and it ends up as r^28r9=0. Why can the zero stay as it is? Is there a skipped step? Thanx  Chocolatepi

June 6th, 2016, 10:29 AM  #2  
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 853 Thanks: 311 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics  Quote:
 
June 6th, 2016, 11:18 AM  #3 
Newbie Joined: Jun 2016 From: indiana Posts: 4 Thanks: 1  chocolatepi
Can't believe I missed that! Thanx!  Chocolatepi

June 6th, 2016, 11:38 AM  #4 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038  
June 6th, 2016, 03:42 PM  #5 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,829 Thanks: 648 Math Focus: Yet to find out.  

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