September 2021 1 7 Report
Вычислите:
а) (12,52-7,52):10;
б) (11,22 – 8,82):24.
Задание 3.
Разложите на множители:
а) с2 – 4а2;
б) 36n2 – m2;
в) –25а2 +10аb – b2;
г) с2 + 4су +4у2.
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