题目内容
【题目】化简:6(7+1)(72+1)(74+1)(78+1)(716+1)+1= .
【答案】732
【解析】解:原式=(7﹣1)(7+1)(72+1)(74+1)(78+1)(716+1)+1 =(72﹣1)(72+1)(74+1)(78+1)(716+1)+1
=(74﹣1)(74+1)(78+1)(716+1)+1
=(78﹣1)(78+1)(716+1)+1
=(716﹣1)(716+1)+1
=732﹣1+1
=732 .
所以答案是:732
【考点精析】解答此题的关键在于理解平方差公式的相关知识,掌握两数和乘两数差,等于两数平方差.积化和差变两项,完全平方不是它.
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