3*4*5,4*5*6,5*6*7,7*8*9 ,...,第n个数是__

来源：学生作业学帮网 编辑：学帮网 时间：2024/07/07 02:42:45

3*4*5,4*5*6,5*6*7,7*8*9 ,...,第n个数是__

（n+2)*(n+3)*(n+4)

3,4,5,6,7, 3,4,5,6,7 3+4+5+6+7 3 4 5 6 7 3 4 5 6 7 . 3,4,5,6,7, 3,4,5,6,7, 3,4,5,6,7 4,5,6,7, 4 5 6 7 4 5 6 7 4、5、6、7, 4 5 6 7 4,5,6,7 4,5,6,7, 4,5,6,7 4,5,6,7 4,5,6,7