x(x - 1)(x - 13)
3x2 + 36x + 81 = 3(x2 + 13x + 27)
vbh
-x2 - 11x + 26= -x2 - 13x + 2x + 26= (2x - x2) + (26 - 13x)= x(2 - x) + 13(2 - x)= (2 - x)(x + 13)
(5x - 4)(3x + 5)
(x - 9)(x - 4)
(x - 10)(x - 3)
(x + 10)(x + 3)
(5x - 4)(3x + 5)
(x - 5)(x - 8)
(x - 6)(x - 7)
X^2 - 13X + 30 = 0 (X-3)(X-10) easy inspection problem
6x2 + 13x + 2 = (6x + 1)(x + 2).