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When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$, and they are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
The trick here is to start the Jmol loading process only after the MathJax process is complete. We monitor the contents of the MathJax_Message div every 10 ms, and while it doesn't exist or its message contains the word Loading, we loop:
checkMathJax = function(fReady) {
return (!$("#MathJax_Message")[0]
|| $('#MathJax_Message:contains("Loading")')[0]
? setTimeout(function(){checkMathJax(fReady)},10)
: fReady());
}
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