1) Х^2-7х +12 =(х-3)(х-4) = x1 = x2 = 4
2) 5х^2-3x-2=(5x+2)(x-1) = x1 = -2/x2 = 1
3) 3x^2+7x+4=(3x+4)(x+1) = x1 = -4/x2 = -1
4) 2x^2+x+3=This quadratic equation has no real roots.
5) 4x^2-12x+9=(2x-3)^2 = x = 3/2
1) Х^2-7х +12 =
(х-3)(х-4) =
x1 =
x2 = 4
2) 5х^2-3x-2=
(5x+2)(x-1) =
x1 = -2/
x2 = 1
3) 3x^2+7x+4=
(3x+4)(x+1) =
x1 = -4/
x2 = -1
4) 2x^2+x+3=
This quadratic equation has no real roots.
5) 4x^2-12x+9=
(2x-3)^2 =
x = 3/2