caitlinesmith00 caitlinesmith00

02-04-2017
Mathematics

contestada

HELP - PICTURE BELOW
Can someone please explain to me how to answer this???

HELP PICTURE BELOW Can someone please explain to me how to answer this class=

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rahmasaleh00 rahmasaleh00

02-04-2017

find the lowest common multiple.
thus 1/[x2+x] +1/[x2-x]=x2-x+x2+x/[(x2-x)(x2+x)]
=2x2/[x4-x2]
=2/[x2-1]
answer is B

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