题目内容
计算6(7+1)(72+1)(74+1)(78+1)+1的值
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.
=(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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