Question 360418
{{{(((6r^2-7r-3)/(r^2-1)) / ((4r^2-12r+9)/(r^2-1))) * ((2r^2-r-3)/(3r^2-2r-1))}}}
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{{{((6r^2-7r-3)/(r^2-1)) * ((r^2-1)/(4r^2-12r+9)) * ((2r^2-r-3)/(3r^2-2r-1))}}}
{{{(((2r-3)(3r+1))/(r^2-1)) * ((r^2-1)/(2r-3)^2) * (((r+1)(2r-3))/((r-1)(3r+1)))}}}
{{{(r+1)/(r-1)}}}
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