## MathJax browser rendering

When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

#### In a heading $B_s$

In a table
 $B_s$ yields xyz

## LaTeX plugin in twiki

When , there are two solutions to and they are