September 2021 2 5 Report
NO1
Спростіть вирази:
а) - 4х + 1,1y +35x - 3,8у;
б) -7 (a - 4) + 6(6 - а);
в) 0,7х•(-8y);
г) -9а•(-10в). Памагите пожалуйста, даю 20 балов
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