as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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construct a set of five multiplication equations that use the same factors.
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1. 5 x 9 =
2. 9 x 5 = 
3. 5 x 9 x 1 = 
4. 9 x 5 x 1 = 
5. 5 x 9 x 1 x 1 =
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