3²减去1²=8=8×1 ,5²减3²=16=8×2的规律3²减去1²=8=8×1 ,5²减3²=16=8×2的规律 要举例和用字母表示
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![3²减去1²=8=8×1 ,5²减3²=16=8×2的规律3²减去1²=8=8×1 ,5²减3²=16=8×2的规律 要举例和用字母表示](/uploads/image/z/2448350-62-0.jpg?t=3%26%23178%3B%E5%87%8F%E5%8E%BB1%26%23178%3B%3D8%3D8%C3%971+%2C5%26%23178%3B%E5%87%8F3%26%23178%3B%3D16%3D8%C3%972%E7%9A%84%E8%A7%84%E5%BE%8B3%26%23178%3B%E5%87%8F%E5%8E%BB1%26%23178%3B%3D8%3D8%C3%971+%2C5%26%23178%3B%E5%87%8F3%26%23178%3B%3D16%3D8%C3%972%E7%9A%84%E8%A7%84%E5%BE%8B+%E8%A6%81%E4%B8%BE%E4%BE%8B%E5%92%8C%E7%94%A8%E5%AD%97%E6%AF%8D%E8%A1%A8%E7%A4%BA)
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3²减去1²=8=8×1 ,5²减3²=16=8×2的规律3²减去1²=8=8×1 ,5²减3²=16=8×2的规律 要举例和用字母表示
3²减去1²=8=8×1 ,5²减3²=16=8×2的规律
3²减去1²=8=8×1 ,5²减3²=16=8×2的规律 要举例和用字母表示
3²减去1²=8=8×1 ,5²减3²=16=8×2的规律3²减去1²=8=8×1 ,5²减3²=16=8×2的规律 要举例和用字母表示
(2n+1)²-(2n-1)²=8×n