Угадайте корни уравнения 12/х= 7-х
12 / X = 7 - X 12 = X * ( 7 - X ) ; X ≠ 0 12 = 7X - X^2 X^2 - 7X + 12 = 0 D = 49 - 48 = 1 ; √ D = 1 X1 = ( 7 + 1 ) : 2 = 4 X2 = ( 7 - 1 ) : 2 = 3