101²-202+1
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![101²-202+1](/uploads/image/z/11681069-5-9.jpg?t=101%26%23178%3B-202%2B1)
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101²-202+1
101²-202+1
101²-202+1
原式=(101-1)²
=100²
=10000
101²-202+1
=101²-2x101+1²
=(101-1)²
=100²
=10000
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101²-202+1
=101²-2x101+1²
=(101-1)²
=100²
=10000
101²-202+1=(101-1)²=100²=10000