Use the "mixed partials" check to see if the following differential equation is exact. f it is exact find a function F(x, y) whose differential, dF(x, y) gives the differential equation. That is, level curves F(x, y) = C are solutions to the diff equation: First rewrite as where M(x, y) and N(x, y) = -2x+2y^3 = -4x^4+2y dy dx = -4x+2y -2x + 2y³ M(x,y) dx + N(x, y) dy = 0

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