I have a question to ask and can't cut and paste the many formula into this post.
Is there anyway to do it without having to learn MathJaX?
OpenOffice lets you save formulas as MathML, which you could then convert to LaTeX using one of the many MathML to LaTeX converters out there. Disclaimer: I haven't tried any of them, so I have no idea if they work.
Sadly, while MathJax actually does support MathML directly, this feature isn't enabled in the deployment here on Stack Exchange.