1) =(23-3)²=20²=400
2) =(16-36)²=(-20)²=400
3) (18,8-8,8)²=10²=100
4) (6,5-10,5)²=(-4)²=16
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1) =(23-3)²=20²=400
2) =(16-36)²=(-20)²=400
3) (18,8-8,8)²=10²=100
4) (6,5-10,5)²=(-4)²=16