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July 10th, 2012, 07:42 PM   #1
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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!
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July 10th, 2012, 07:45 PM   #2
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Re: Factoring Polynomials

Factor the numerator and divide out factors common to the numerator and denominator.
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July 10th, 2012, 07:49 PM   #3
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Re: Factoring Polynomials

Oh man, I can't believe I didn't see that. Thanks.
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July 10th, 2012, 08:53 PM   #4
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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
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July 10th, 2012, 08:59 PM   #5
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Re: Factoring Polynomials

Your lowest common denominator is .
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