You can put this solution on YOUR website! That is a rational function. Nothing to solve. What do you really want from it? What is x? What is H(x) for some given x?
It EXCLUDES any value if x=0, because H is undefined for x=0.
It has a vertical asymptotes for x=-7 and x=7, because H is undefined at those values.
H contains the factor, , which is why x=0 is a hole, and not an asymptote.
You can check the signs of H around the critical x values so you can find where H is
positive and where negative, and how H behaves around the asymptote. The critical values
of x are 0 and -7 and 7.
(This attempted graph is not rendering. Try putting the function either into a graphing calculator or in the text search field of google.)
(