In 2 Kings 24:8 it says "Jehoiachin was eighteen years old when he became king, and he reigned three months in Jerusalem, and his mother's name was Nehushta the daughter of Elnathan of Jerusalem." Then in 2 Chronicles 36:9 it says "Jehoiachin was eight years old when he became king, and he reigned three months and ten days in Jerusalem, and he did that which was evil in the eyes of the Lord."
How is this reconciled?