Final answer:
Two factors that contributed to the failure of the Articles of Confederation were Congress abusing its power to tax and the federal government being unable to enforce laws.
Step-by-step explanation:
Two factors that contributed to the failure of the Articles of Confederation were Congress abusing its power to tax and the federal government being unable to enforce laws. Congress was given the power to tax, but it lacked the authority to compel states to pay their taxes, leading to financial instability for the national government. Additionally, the lack of a strong central authority meant that the federal government had limited power to enforce laws and carry out its responsibilities, such as regulating trade and maintaining order.