In which case would it be best to use the "Factoring Method" to solve the trinomial equation?

x^2 + 4x = - 5

4.3x^2 + 2.4x - 3 = 0

x^2 - 4x + 3 = 0

The best case would be to use factoring in the last equation because it has whole numbers that are "factorable," meaning that its c value has factors that evenly add up to its b value.

In this case, (x-3) (x-1). - 1*-3=3 and - 1+-3=-4