I need to find integrating factor, i will solve the equation once the integrating factor is found.

Equation:

Where the equation is in the form of:

Therefore Differential equation is NOT exact...yet, I still need to find the integrating factor.

I need to find an "integrating factor" using this special case:

if an only if

should simpify down to 1 (i think, professor didnt say for this special case ) by making and appropriote constant values. Here is what I get:

I cannot make and values that will simplify this fraction down to "1" unless they are 0, which does not work.

I need to find the "integrating factor" but messed up or am doing it wrong, in either case any help would be appreciated. Thanks!