You can put this solution on YOUR website! (x^2)/(x^2+3x+2)/(x^2+2X)/(x^2-1)
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Invert the denominator and multiply:
[(x^2)/(x^2+3x+2)] * [(x^2-1)/(x^2+2X)]
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Factor where you can:
[(x^2)/(x+1)(x+2)] * [(x+1)(x-1)/(x(x+2)]
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Cancel where you can:
[(x)/(x+2)] * [(x-1)/(x+2)]
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Simplify:
= [x(x-1)] / (x+2)^2
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Cheers,
Stan H.