[_rational, _dAlembert]
Book solution method
Clairaut’s equation and related types, d’Alembert’s equation (also call Lagrange’s)
Mathematica ✓
cpu = 1.23018 (sec), leaf count = 32
Maple ✓
cpu = 0.018 (sec), leaf count = 39
DSolve[y'[x] + x*y'[x]^2 == y[x],y[x],x]
Mathematica raw output
Solve[{x == (-K$1057 + C[1] + Log[K$1057])/(-1 + K$1057)^2, K$1057 + K$1057^2*x
== y[x]}, {y[x], K$1057}]
Maple raw input
dsolve(x*diff(y(x),x)^2+diff(y(x),x) = y(x), y(x),'implicit')
Maple raw output
[x(_T) = 1/(_T-1)^2*(-_T+ln(_T)+_C1), y(_T) = _T*(_T*ln(_T)+1+(_C1-2)*_T)/(_T-1)
^2]