x1= 2x2 = 0.5x1+x2 = 2.5x1*x2 = 1(x1+x2) + (x1*x2) = 3.5ответ: 3,5
x1= 2 x2 = 0.5х1+x2 = 2.5x1*x2 = 1(x1+x2) + (x1*x2) = 3.5