3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4……3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4 用n的式子表示
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/23 19:01:42
![3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4……3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4 用n的式子表示](/uploads/image/z/204484-4-4.jpg?t=3%26%23178%3B-1%3D8%3D8%2A1%2C5%26%23178%3B-3%26%23178%3B%3D16%3D8%2A2%2C7%26%23178%3B-5%26%23178%3B%3D24%3D8%2A3%2C9%26%23178%3B-7%26%23178%3B%3D32%3D8%2A4%E2%80%A6%E2%80%A63%26%23178%3B-1%3D8%3D8%2A1%2C5%26%23178%3B-3%26%23178%3B%3D16%3D8%2A2%2C7%26%23178%3B-5%26%23178%3B%3D24%3D8%2A3%2C9%26%23178%3B-7%26%23178%3B%3D32%3D8%2A4+%E7%94%A8n%E7%9A%84%E5%BC%8F%E5%AD%90%E8%A1%A8%E7%A4%BA)
3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4……3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4 用n的式子表示
3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4……
3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4
用n的式子表示
3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4……3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4 用n的式子表示
n的2次方-(n-2)的2次方=4n-4=8*(2分之1n-2分之1)