Question 57470
I hope this is how you wanted it:
{{{((x^2 + 2x - 15)/(x^2 - 9))/((x^2 + 6x + 5)/(x^2 + 4x + 3))}}}
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{{{((x^2 + 2x - 15)/(x^2 - 9))((x^2 + 4x + 3)/(x^2 + 6x + 5))}}}
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{{{(((x + 5)(x - 3))/((x - 3)(x + 3)))(((x + 3)(x + 1))/((x + 5)(x + 1)))}}}
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{{{((x + 5)/(x + 3))((x + 3)/(x + 5))}}}
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{{{((x + 5)(x + 3))/((x + 3)(x + 5))}}}
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{{{1}}}