12x^{2}-x-6
12m^{2}-13m-35
5x^{2}+7x+2
3x^{2}-5x-2
6x^{2}+7x+2
(4x-3)(3x+2)
(x+1)(5x+2)
(4m+5)(3m-7)
(x-2)(3x+1)
(2x-1)(3x-2)
