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2015-02-24T18:46:34+08:00

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First factor out:
\frac{(1-x)(1+x)}{(x-1)^2}
Since there is 1-x and (x-1)²; notice that 1-x is the opposite of x-1, therefore divide it.
\frac{-(1+x)}{x-1}

Hope this helps =)
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2015-02-26T16:22:40+08:00
- (1+X) / X-1......PAREHAS LANG PO NANG SOLUTION..........sana naka convince 
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