Final answer:
Macbeth hires three murderers to kill Banquo in order to eliminate a perceived threat and protect his position as king.
Step-by-step explanation:
In Shakespeare's play Macbeth, Macbeth hires three murderers to kill Banquo because he sees him as a threat to his power and wants to ensure his own position as king. Macbeth is unable to carry out the murder himself due to his guilt and conscience, which is symbolized by the vision of Banquo's ghost haunting him. By hiring murderers, Macbeth can distance himself from the act and maintain a facade of innocence. Moreover, Macbeth may believe that by using others to commit the murder, he can avoid suspicion and potential consequences.
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