#2**+1 **

You can see that it is \((x+6)(x+7)\)

or

Quadratic Formula

\(\frac{-13\pm \sqrt{13^2-4\times 42}}{2}=\frac{-13+1}{2}=-6, \frac{-13-1}{2}=-7\) so it's \((x+6)(x+7)\)

(wow, for me, that was a lot of complicated LaTeX!)

You are very welcome!

:P

CoolStuffYT Nov 30, 2018