Question 375792

Use the common denominator, {{{u^2-64=(u-8)(u+8)}}}
{{{(8u)/(u^2-64)+u/(u-8)=(8u)/(u^2-64)+(u(u+8))/((u+8)(u-8))}}}
{{{(8u)/(u^2-64)+u/(u-8)=(8u+u(u+8))/((u+8)(u-8))}}}
{{{(8u)/(u^2-64)+u/(u-8)=(8u+u^2+8u))/((u+8)(u-8))}}}
{{{(8u)/(u^2-64)+u/(u-8)=(u^2+16u))/((u+8)(u-8))}}}
{{{ (8u)/(u^2-64)+u/(u-8) =highlight((u(u+16))/((u+8)(u-8)))}}}