1.310 problem 311

Internal problem ID [7891]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 1, linear first order
Problem number: 311.
ODE order: 1.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {\left (20 y^{3}-3 x y^{2}+6 y x^{2}+3 x^{3}\right ) y^{\prime }-y^{3}+6 x y^{2}+9 y x^{2}+4 x^{3}=0} \end {gather*}

Solution by Maple

Time used: 0.156 (sec). Leaf size: 50

dsolve((20*y(x)^3-3*x*y(x)^2+6*x^2*y(x)+3*x^3)*diff(y(x),x)-y(x)^3+6*x*y(x)^2+9*x^2*y(x)+4*x^3 = 0,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {\RootOf \left (x^{4} c_{1}^{4}+3 \textit {\_Z} \,x^{3} c_{1}^{3}+3 \textit {\_Z}^{2} x^{2} c_{1}^{2}-\textit {\_Z}^{3} x c_{1}+5 \textit {\_Z}^{4}-1\right )}{c_{1}} \]

Solution by Mathematica

Time used: 60.28 (sec). Leaf size: 2201

DSolve[4*x^3 + 9*x^2*y[x] + 6*x*y[x]^2 - y[x]^3 + (3*x^3 + 6*x^2*y[x] - 3*x*y[x]^2 + 20*y[x]^3)*y'[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {1}{2} \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}-\frac {1}{2} \sqrt {-\frac {39 x^2}{50}-\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (-13 x^4+10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}-\frac {659 x^3}{500 \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}}}+\frac {x}{20} \\ y(x)\to \frac {1}{2} \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}+\frac {1}{2} \sqrt {-\frac {39 x^2}{50}-\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (-13 x^4+10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}-\frac {659 x^3}{500 \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}}}+\frac {x}{20} \\ y(x)\to -\frac {1}{2} \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}-\frac {1}{2} \sqrt {-\frac {39 x^2}{50}-\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (-13 x^4+10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}+\frac {659 x^3}{500 \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}}}+\frac {x}{20} \\ y(x)\to -\frac {1}{2} \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}+\frac {1}{2} \sqrt {-\frac {39 x^2}{50}-\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (-13 x^4+10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}+\frac {659 x^3}{500 \sqrt {-\frac {39 x^2}{100}+\frac {\sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}{5 \sqrt [3]{2} 3^{2/3}}+\frac {2 \sqrt [3]{\frac {2}{3}} \left (13 x^4-10 e^{c_1}\right )}{5 \sqrt [3]{99 x^6+351 e^{c_1} x^2+\sqrt {3} \sqrt {-67037 x^{12}+185406 e^{c_1} x^8-83733 e^{2 c_1} x^4+32000 e^{3 c_1}}}}}}}+\frac {x}{20} \\ \end{align*}