Question 2 Let x = vy, where v is an arbitrary function of y. Using this substitution in solving the differential equation xydx - (x+2y) ²dy = 0, which of the following is the transformed differential equation in simplest form? A v²dy+vydv-(v + 2)²dy=0 B There is no correct answer from among the given choices. D vydv-4(v+1) dy=0 vydv + (2v²-4v-4) dy=0

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