Please circle all answers, will provide positive feedback for worked out solutions

(1 point} The equation (12 + 23,531) (13 + (63192: + 4y3})dy = 0 in differential form H d2: + K71 dy = 0 is not exact. Indeed, we have For this exercise we can nd an integrating factor which is a function of 3: alone since can be considered as a function of 1: alone. Namely we have \"(3) : Multiplying the original equation by the integrating factor we obtain a new equation M (in: + N dy : t] where M: N: Which is exact since are equal. This problem is exact. Therefore an implicit general solution can be written in the form Fm, y) = C where F(:r,y) =