Thanks for the link. 

[Codecogs editor](https://www.codecogs.com/latex/eqneditor.php) approach seems to work. Based on one the answers in your link.

![\Large x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}](https://latex.codecogs.com/svg.latex?\Large&space;x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}) 

south_korea_ln

Looks like there's a [long discussion on StackOverflow](https://stackoverflow.com/questions/11256433/how-to-show-math-equations-in-general-githubs-markdownnot-githubs-blog) about this. The consensus seems to be to stick with hosted images of the math you want to use.

StillStackinAfterAllTheseYears

BooksAndArticles

Mathematical poetry

Don't mind me, checking if markdown here has mathjax support.

$\sqrt{3}$

(It doesn't) 