Final answer:
The victory at the Battle of Tours changed the life of Charles Martel by solidifying his leadership, strengthening his political authority, and halting the Arab conquests in Europe.
Step-by-step explanation:
The victory at the Battle of Tours, also known as the Battle of Poitiers, changed the life of Charles Martel in several ways. Firstly, it solidified his position as a powerful Carolingian leader, as he successfully defended the Frankish kingdom against the invading Arab armies. Secondly, this victory strengthened his political authority, allowing his son Pepin to seize power from the Merovingians and establish the Carolingians as the rightful rulers. Lastly, it marked the end of the Arab conquests in Europe, preventing further incursions into Frankish territory and ensuring the preservation of Christian kingdoms in Western Europe.