The negative root is also a square root, but it isn't the root denoted by the radical symbol. But anyway, when talking about THE nth root, we're almost always

The negative root is also a square root, but it isn't the root denoted by the radical symbol. But anyway, when talking about THE nth root, we're almost always talking about the principal root. https://news.ycombinator.com/item?id=34441863 https://news.ycombinator.com/item?id=34441863