1.325 problem 326

Internal problem ID [8662]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 1, linear first order
Problem number: 326.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, `class A`], _rational, _dAlembert]

\[ \boxed {y \left (\left (a y+x b \right )^{3}+x^{3} b \right ) y^{\prime }+x \left (\left (a y+x b \right )^{3}+a y^{3}\right )=0} \]

Solution by Maple

Time used: 0.25 (sec). Leaf size: 160

dsolve(y(x)*((a*y(x)+b*x)^3+b*x^3)*diff(y(x),x)+x*((a*y(x)+b*x)^3+a*y(x)^3) = 0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {x \left (x c_{1} -b \operatorname {RootOf}\left (b^{2} \textit {\_Z}^{4}-2 b x c_{1} \textit {\_Z}^{3}+\left (a^{2} c_{1}^{2} x^{2}+b^{2} c_{1}^{2} x^{2}+c_{1}^{2} x^{2}-a^{2}\right ) \textit {\_Z}^{2}-2 b \,x^{3} c_{1}^{3} \textit {\_Z} +c_{1}^{4} x^{4}\right )\right )}{a \operatorname {RootOf}\left (b^{2} \textit {\_Z}^{4}-2 b x c_{1} \textit {\_Z}^{3}+\left (a^{2} c_{1}^{2} x^{2}+b^{2} c_{1}^{2} x^{2}+c_{1}^{2} x^{2}-a^{2}\right ) \textit {\_Z}^{2}-2 b \,x^{3} c_{1}^{3} \textit {\_Z} +c_{1}^{4} x^{4}\right )} \]

Solution by Mathematica

Time used: 61.479 (sec). Leaf size: 13289

DSolve[x*(a*y[x]^3 + (b*x + a*y[x])^3) + y[x]*(b*x^3 + (b*x + a*y[x])^3)*y'[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

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