Найдем значение выражения 3a(b + 3) + c(b + 3) при a = -0,2, b = 1,03 и c = 1,6:
3a(b + 3) + c(b + 3) = 3 ⋅ (-0,2) ⋅ (1,03 + 3) + 1,6 ⋅ (1,03 + 3) = -0,6 ⋅ 4,03 + 1,6 ⋅ 4,03 = 4,03 ⋅ (1,6 - 0,6) = 4,03 ⋅ 1 = 4,03
Ответ: 4,03