2010020012

How many of the following functions have exactly two asymptotes? $$$$ $f(x)=\frac{-x^3+1}{(x-3{)}^2},$ $h(x)={\left(\frac{x+2}{x-2}\right)}^4,$ $i(x)=-\frac{x^2}{x^2-2},$ $g(x)=\sqrt{6x+2}$