Розкрийте дужки:
1) 15 · (а + 12); 5) 3 · (2p + k + 5t);
2) c · (8 – 11d); 6) 5 · (a + 5) + 4 · (a + 6);
3) 6 · (2n + m); 7) (y + 8) · 10 + (5 – y) · 6;
4) (n – m) · 15p; 8) (4m + 9) · 5 + 3 · (5m – 6) + 8 · (4m – 5).
ПОМОГИТЕ СРОЧНО!!!!!!!!!!!!!!!!!!! ОЧЕНЬ НУЖНО
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