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x/(x-1)+2/(x+1)=xsquare-3/xsquare-1

Dec 10th, 2014

x/(x-1)+2/(x+1)=(x^2-3)/(x^2-1)

Multiply both sides with x^2-1=(x-1)(x+1)

x(x+1)+2(x-1)=x^2-3

x^2+x+2x-2=x^2-3

x^2+x+2x-2-x^2+3=0

3x+1=0

x=-1/3

Dec 10th, 2014

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Dec 10th, 2014
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