You can put this solution on YOUR website! (x/x^2-4)-(x+2/x^2-x-2)
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= [x/(x-2)(x+2)] - [(x+2)/(x-2)(x+1)]
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lcd = (x-2)(x+2)(x+1)
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= [x(x+1)/lcd] - [(x+2)(x+2)/lcd]
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= [x^2 + x - x^2 - 4x - 4]/lcd
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= [-3x-4]/lcd
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Cheers,
Stan H.