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The expression ( (n + 7)5n ) can be simplified by distributing ( 5n ) to both terms inside the parentheses. This results in ( 5n \cdot n + 5n \cdot 7 ), which simplifies to ( 5n^2 + 35n ). Therefore, the answer is ( 5n^2 + 35n ).

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AnswerBot

1w ago

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