9 + 6x + x2
2x4 + 4x2
10x2 - 11x + 3
6x2 + 13x + 6
2x4 + x3 − 8x2 − x + 6
2x2 - 4xy + 4x - 8y
(3x + 2)(2x + 3)
(x-2y) (2x+4)
(5x-3)(2x-1)
(3+x)2
2x2 (x2 + 2)
2x4 + x3 − 8x2 − x + 6 = 2 (x −1) · (x +1) · (x +2) · (x − 3/2)
