Complete the table and use the result to estimate the limit

$\underset{x3}{lim}\frac{x^2-9}{3-x}=$

$\backslash$table$[[x,2\mathrm{.}9,2\mathrm{.}99,2\mathrm{.}999,3,3\mathrm{.}001,3\mathrm{.}01,3\mathrm{.}1],[f(x),,,,?,,,]$