EQUATION IS:(4y+(5x^4)(e^?4x))dx+(1?(5y^4)(e^?4x))dy=0 in differential form \( \widetilde{M} d x+\widetilde{N} d y=0 \) is not exact. Indeed, we have \[ \widetilde{M}_{y}-\widetilde{N}_{x}= \] For this exercise we can find an integrating factor which is a 1 answer