its pre straight forward, ive got an idea on how to do it, but i keep getting the wrong answer.

$\displaystyle -6x^2+13x-5$

so far i got $\displaystyle (3x- ?)(2x+?)$

i know how to solve it, but im getting the wrong numbers in the question marks above. ive got the idea of getting rid of the $\displaystyle 6x^2$ by x it by constant 5.