Ответ: 1) = (55+45)*(55-45)= 100*10=100
2) = (76+24)*(76-24)= 100*52= 5200
3)= (37+23)*(37-23)= 60*14=840
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Ответ: 1) = (55+45)*(55-45)= 100*10=100
2) = (76+24)*(76-24)= 100*52= 5200
3)= (37+23)*(37-23)= 60*14=840