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y(x)ddxy(x)+f((y(x))2+x2)g(x)+x=0
Mathematica: cpu = 22.411346 (sec), leaf count = 92 Solve[∫1y(x)(K[2]f(K[2]2+x2)−∫1x−2K[1]K[2]f′(K[1]2+K[2]2)f(K[1]2+K[2]2)2dK[1])dK[2]+∫1x(K[1]f(K[1]2+y(x)2)+g(K[1]))dK[1]=c1,y(x)]
Maple: cpu = 0.094 (sec), leaf count = 30 {∫_by(x)_af(_a2+x2)d_a+∫g(x)dx−_C1=0}
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