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ddxy(x)−y(x)−x2x2−(y(x))2xy(x)x2−(y(x))2+x=0
Mathematica: cpu = 3.807984 (sec), leaf count = 40 Solve[tan−1(y(x)x2−y(x)2)+x22+y(x)22=c1,y(x)]
Maple: cpu = 0.297 (sec), leaf count = 34 {(y(x))22+arctan(y(x)1x2−(y(x))2)+x22−_C1=0}
Sage: cpu = 0 (sec), leaf count = 0 Maxima was unable to solve this ODE
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