My Math Forum Factoring Polynomials

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 July 10th, 2012, 08:42 PM #1 Newbie   Joined: Jun 2012 Posts: 20 Thanks: 0 Factoring Polynomials I have 6x-2 - 4x-6 both over the same denominator x^2+1x-2 First thing I did was distribute the negative so I have 6x-2-4x+6 now combining like terms = 2x+4 over the denominator x^2+1x-2 Factoring the denominator (x+2) (x-1) my solution was 2x+4 over (x+2) (x-1) but I got it wrong. I can't seem to see what I did wrong. Help appreciated!
 July 10th, 2012, 08:45 PM #2 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 520 Math Focus: Calculus/ODEs Re: Factoring Polynomials Factor the numerator and divide out factors common to the numerator and denominator.
 July 10th, 2012, 08:49 PM #3 Newbie   Joined: Jun 2012 Posts: 20 Thanks: 0 Re: Factoring Polynomials Oh man, I can't believe I didn't see that. Thanks.
 July 10th, 2012, 09:53 PM #4 Newbie   Joined: Jun 2012 Posts: 20 Thanks: 0 Re: Factoring Polynomials 7/y^2 + 6/5y - 5/6y Finding a common denominator I came up with 30y but that y^2 throws me off, I'm not sure on how to proceed
 July 10th, 2012, 09:59 PM #5 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 520 Math Focus: Calculus/ODEs Re: Factoring Polynomials Your lowest common denominator is $30y^2$.

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