Решите уравнение х^2-6х=16
X^2 - 6x - 16 = 0 D = 36 + 4*16 = 100 = 10^2 x1 = ( 6 + 10)/2 = 16/2 = 8; x2 = ( 6 - 10)/2 = - 4/2 = - 2