№1. Розкрий дужки й спрости вираз: 1) 3(x - 2,7) 3x - 2) 4a 3) -12- 7(a + 1) 4) 5(7-a) - 5a 5) 28 + 4(y -

№1. Розкрий дужки й спрости вираз: 1) 3(x - 2,7) 3x - 2) 4a 3) -12- 7(a + 1) 4) 5(7-a) - 5a 5) 28 + 4(y - 9) 6) 8x - (19x - 6) + 4(3x-1) 7) -4a-4(-a + 8) + 16 8) 2(6+x)-3(-3 - 2x) - 2(8 + 2a) №2. Доведи, що значення виразу (3x - 5) 0,2 (2x-4) 0,7-(2,6 - 0,8x) не залежить відзначення інної.
- Предмет:
  Математика
- Автор:
  wilsoncarson
- 1 год назад

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  monkeyvvuu
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