Suppose $f(x)=(x-9)g(x),$ where $g(x)$ is some polynomial.

Find a solution: $f(x)=0.$

$x=$

$$

Suppose $g(x)=0$ has solutions for $x=-6,x=8,$ and no others.

Find the $x-$intercepts of the graph of $y=f(x)$ : $$