1) In Formula Bar select the 2 and use Format:Cells:Font:Superscript
2) Replace the 2 by ²; do this by holding down ALT and typing 0178 using the numeric keyboard. Or use Insert Symbol. Unfortunately unless you have a special font (Chemistry SansSerif) or the Calibri font from Office 2007, you have only ² and ³.
3) Use Insert | Object | Equation Editor
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.