Question 79219
I need to see how this was solved: x/x-1 - 2/1-x^2 = 8/x+1

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x/(x-1) + 2/(x^2-1) -8/(x+1)
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lcd is x^2-1 which is (x+1)(x-1)
Write each fraction with the lcd as its denominator:
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x(x+1)/lcd +2/lcd -8(x-1)/lcd

Combine the numerators and write over the lcd:
[x^2+x+2-8x+8]/lcd
[x^2-7x+10]/lcd
[(x-2)(x-5)]/[(x+1)(x-1)]
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Cheers,
Stan H.