1) x(2x + 1 - 3x^2)
D = 4 + 12 = 16
x1 = (-2 + 4) / -6 = -1/3
x2 = (-2 - 4) / -6 = 1
x((x + 1/3)(x - 1))
2) y(y^2 - 2y + 1)
D = 4 - 4 = 0
y = 2/2 = 1
y((y - 1)(y - 1))
3)
3xy^2 - x^2y + x^2y^2
xy(3y - x + xy)
4)
4c^2(m+n) + d^2(m +n) =
(m+n)(4c^2 + d^2)
5)
4x^2(a - b) - (a - b)^2 =
(a -b)(4x^2 - a + b)
6)
4c^2(m+n) + (m+n)^2 =
(m+n)(4c^2 + m + n)