The most basic and easiest way possible in factoring out trinomials is to utilize the quadratic formula. This is the easiest way because all this formula requires is that you do simple adding, subtracting, multiplication, division, and putting numbers to the power given within the equation. This method will work for solving trinomials 100% of the time and is guaranteed a correct answer if done properly. Another method for factoring out trinomials is inclusive of using the fill in the square method. Although this works, it is fairly time consuming in comparison to using the quadratic formula.