Question 308924
{{{((5x^2+21x+4)/(x^2-16))/((5x+1)/(x-2))}}}
{{{((5x^2+21x+4)/(x^2-16))*((x-2)/(5x+1))}}}
{{{(((5x+1)(x+4))/((x-4)(x+4)))*((x-2)/(5x+1))}}}
{{{((cross(5x+1)cross(x+4))/((x-4)cross(x+4)))*((x-2)/cross(5x+1))}}}
{{{(1/(x-4))*((x-2)/1))}}}
{{{(x-2)/(x-4)}}}