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by amising6 » Wed Jun 16, 2010 4:40 am
if 1/x - 1/x+1 = 1/x+4 then x could be ?

please any ideas?

solution)
taking lcm
(x+1-x)/(x*(x+1))=1/x+4
1/x^2+x)=1/x+4
x+4=x^2+x
x^2=4
x=+2 and x=-2
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by kvcpk » Wed Jun 16, 2010 7:00 am
francoisph wrote:if 1/x - 1/x+1 = 1/x+4 then x could be ?

please any ideas?
This was a direct one.. Did you make mistake in calculation?
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by francoisph » Wed Jun 16, 2010 7:11 am
I missed to multiply by x+1-x
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by kvcpk » Wed Jun 16, 2010 7:14 am
francoisph wrote:I missed to multiply by x+1-x
Kool.. it happens :)
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by francoisph » Wed Jun 16, 2010 7:37 am
want to beatttttttt gmat ! headache lol
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