Question 452775
{{{(4h-16)/(h^2-16)}}}



{{{(4(h-4))/(h^2-16)}}}



{{{(4(h-4))/((h-4)(h+4))}}}



{{{(4*highlight((h-4)))/(highlight((h-4))(h+4))}}}



{{{(4*cross((h-4)))/(cross((h-4))(h+4))}}}



{{{4/(h+4)}}}



So {{{(4h-16)/(h^2-16)}}} simplifies to {{{4/(h+4)}}}



In other words, {{{(4h-16)/(h^2-16)=4/(h+4)}}}