Question 257117
The function can be simplified to 
{{{h(x)=8/(x^2-36)}}}
The domain is limited by the denominator not being allowed to equal zero.
{{{x^2-36=0}}}
{{{x=0 +- 6}}}
The domain is then all x except x=-6 and 6. 
{{{ graph( 300, 300, -10, 10, -10, 10, (8*x)/(x*(x^2-36))) }}}