DESCRIBE BRIEFLY WHY THE UNITED STATES NEEDED TO REPLACE THE ARTICLES OF CONFEDE

DESCRIBE BRIEFLY WHY THE UNITED STATES NEEDED TO REPLACE THE ARTICLES OF CONFEDERATION, THEN DESCRIBE IN DETAIL HOW THE CONSTITUTION (AS AMENDED WITH THE BILL OF RIGHTS) SUCCESSFULLY RESOLVED THESE PROBLEMS.
please be specific and simple
please i want it everything to be clear, 3 paragraphs