973 Вычислите: 1) (-8)2 + (9)2 – (-4)3; 2) (-13)2 - (-14)2.
974. Вычислите: 1) (-1) - (-1) - (-1); 2) (-1)2 + (-1) + (-1),
ПОМОГИТЕ ПОЖАЛУЙСТА И КАК ДАТЬ 40БАЛ​
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