$$\frac{x\pm3}{x^{2+6x+9}}\frac{x-3}{x^{2}+6x+9}$$
$\frac{\left(x-3\right)\left(x±3\right)}{\left(x+3\right)^{2}x^{6x+11}}$
$\frac{x^{-\left(6x+11\right)-1}\left(x^{3}\frac{\mathrm{d}}{\mathrm{d}x}(x±3)-9x\frac{\mathrm{d}}{\mathrm{d}x}(x±3)-6x^{3}\ln(x)\left(x±3\right)-6x^{3}\left(x±3\right)+54x\ln(x)\left(x±3\right)-12x^{2}\left(x±3\right)+63x\left(x±3\right)+99\left(x±3\right)\right)}{\left(x+3\right)^{3}}$
