Is there a formula for factoring simple second order polynomials with zero trial and error? For example: 3X^2-11X+6 I know the answer is (3X-2)(X-3) and that can be checked by foiling obviously. I know 3X and X have to be the first terms, and that the last two have to be multiples of 6. I'm just curious if there's a way to quickly put them together so that the middle term is correct, without checking the answer by foiling. Thanks.