Question 421434
{{{((2x^2 - 10x)/ (x^2 +8x +16)) ((4x + 16)/ (x^2 - 25))}}}

{{{(2x(x-5))/((x+4)^2)*(4(x+4))/((x+5)(x-5))}}}

{{{(2x(cross(x-5)))/((x+4)(cross(x+4)))*(4(cross(x+4)))/((x+5)(cross(x-5)))}}}

{{{8x/((x+4)(x+5))}}}