Ответ:
1) (7.3²-2.7²)=(7.3-2.7)*(7.3+2.7)=4.6*10=46
2) (-7.2+3.8)²
3) (4.7-4.5)³
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Ответ:
1) (7.3²-2.7²)=(7.3-2.7)*(7.3+2.7)=4.6*10=46
2) (-7.2+3.8)²
3) (4.7-4.5)³