David4 wrote:
How do I insert exponents, e.g., the raised 2 to connote "squared",
in Word text?

Format them as superscripts. The long way is to open the Format Font
dialog and click the Superscript checkbox. The shortcut is to select the
text and press Ctrl and Shift and the + key in the top row.

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Regards,
Jay Freedman
Microsoft Word MVP FAQ: http://word.mvps.org