Question 386997
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Hi,         
{{{a/(a-1)^2 + 1/((a-1)(a-4)))}}}
{{{a/(a-1)^2 + 1/((a-1)(a-4)))}}}
{{{(a(a-4) + 1(a-1))/((a-4)(a-1)^2) }}}
{{{(a^2-3a-1)/((a-4)(a-1)^2) }}}