Д = b^2 - 4ac = 1+24 = 25
x1 = ( - b - корень из Д) / 2 = (-1-5)/4 = - 3/2
x2 = (-1+5)/4 = 1
2(x-1)(x+ (3/2))
Д = b^2 - 4ac = 1+24 = 25
x1 = ( - b - корень из Д) / 2 = (-1-5)/4 = - 3/2
x2 = (-1+5)/4 = 1
2(x-1)(x+ (3/2))