题目内容
【题目】化简:6(7+1)(72+1)(74+1)(78+1)+1=__.
【答案】732
【解析】试题分析:在本题中可把6看成是(7﹣1),再根据平方差公式一步步得出结果.
解:6(7+1)(72+1)(74+1)(78+1)+1,
=(7﹣1)(7+1)(72+1)(74+1)(78+1)+1,
=(72﹣1)(72+1)(74+1)(78+1)+1,
=(74﹣1)(74+1)(78+1)+1,
=(78﹣1)(78+1)+1,
=(716﹣1)+1,
=716.
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