2 (4 + c) + (2 - c)*(2 + c)
(4 + c)^2 + (2 - c)*(2 + c)
(4 + c)^2 + (2 - c)*(2 + c) при c = 3
подставляем
2 (4 + c) + (2 - c)*(2 + c)
20 + 8*c
переменные
c = 3
20 + 8*(3)
20 + 8*3
44
44
16.0*(1 + 0.25*c)^2 + (2.0 + c)*(2.0 - c)
16.0*(1 + 0.25*c)^2 + (2.0 + c)*(2.0 - c)
2 2 4 + (4 + c) - c
4 + (4 + c)^2 - c^2