Technically you can but it is discouraged and you will be penalized for duplicate content even if it is your own. Here is the rule:
Your Hub's content has been detected on another site and has incurred a HubScore penalty as a result. You are allowed to post content on HubPages that is also published elsewhere, like your own site or blog—but you cannot place any promotional links on that Hub. Only you can see the alert message at the top of your Hub. A pattern of publishing duplicate content will negatively affect your HubScore, as we prefer to reward authors who publish content unique to our HubPages. It does not matter whether or not you are the original author of this content.