Differential Equations

Question

Determine whether the given differential equation is exact. If it is exact, solve it. (If it is not exact, enter NOT.)

(x^2y^3-(1/(1+9x^2)))dy/dx+ x3y2 = 0

Answer 1

M(x,y) = x^2y^3 + x^3y^2 while N(x,y) = 1/(1+9x^2)

dM/dy does not equal dN/dx so it is not exact