Internal problem ID [3117]
Book: Differential equations with applications and historial notes, George F. Simmons,
1971
Section: Chapter 2, End of chapter, page 61
Problem number: 5.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [[_homogeneous, `class G`], _rational, [_Abel, `2nd type`, `class B`]]
\[ \boxed {y^{2}-\left (x^{3}-y x \right ) y^{\prime }=0} \]
✓ Solution by Maple
Time used: 0.141 (sec). Leaf size: 285
dsolve(y(x)^2=(x^3-x*y(x))*diff(y(x),x),y(x), singsol=all)
\begin{align*} y \left (x \right ) = c_{1} \left (\frac {\left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}{x^{3}}+\frac {c_{1}}{x^{3} \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}\right ) x^{2} y \left (x \right ) = \frac {c_{1} \left (-\frac {2 \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}{x^{3}}-\frac {2 c_{1}}{x^{3} \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}-2 i \sqrt {3}\, \left (\frac {\left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}{x^{3}}-\frac {c_{1}}{x^{3} \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}\right )\right ) x^{2}}{4} y \left (x \right ) = \frac {c_{1} \left (-\frac {2 \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}{x^{3}}-\frac {2 c_{1}}{x^{3} \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}+2 i \sqrt {3}\, \left (\frac {\left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}{x^{3}}-\frac {c_{1}}{x^{3} \left (-x^{3}+\sqrt {x^{6}-c_{1}^{3}}\right )^{\frac {1}{3}}}\right )\right ) x^{2}}{4} \end{align*}
✓ Solution by Mathematica
Time used: 60.13 (sec). Leaf size: 820
DSolve[y[x]^2==(x^3-x*y[x])*y'[x],y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to x^2-\frac {9 x^2}{\frac {9 \sqrt [3]{x^{12} \left (-\cosh \left (\frac {3 c_1}{4}\right )\right )-x^{12} \sinh \left (\frac {3 c_1}{4}\right )+2 x^6 \cosh \left (\frac {3 c_1}{8}\right )+2 x^6 \sinh \left (\frac {3 c_1}{8}\right )+\sqrt {x^6 \left (\cosh \left (\frac {15 c_1}{16}\right )+\sinh \left (\frac {15 c_1}{16}\right )\right ) \left (\left (x^6-1\right ) \cosh \left (\frac {3 c_1}{16}\right )+\left (x^6+1\right ) \sinh \left (\frac {3 c_1}{16}\right )\right ){}^3}-1}}{x^6 \cosh \left (\frac {3 c_1}{8}\right )+x^6 \sinh \left (\frac {3 c_1}{8}\right )-1}-\frac {9}{\sqrt [3]{x^{12} \left (-\cosh \left (\frac {3 c_1}{4}\right )\right )-x^{12} \sinh \left (\frac {3 c_1}{4}\right )+2 x^6 \cosh \left (\frac {3 c_1}{8}\right )+2 x^6 \sinh \left (\frac {3 c_1}{8}\right )+\sqrt {x^6 \left (\cosh \left (\frac {15 c_1}{16}\right )+\sinh \left (\frac {15 c_1}{16}\right )\right ) \left (\left (x^6-1\right ) \cosh \left (\frac {3 c_1}{16}\right )+\left (x^6+1\right ) \sinh \left (\frac {3 c_1}{16}\right )\right ){}^3}-1}}+9} y(x)\to x^2-\frac {18 x^2}{\frac {9 i \left (\sqrt {3}+i\right ) \sqrt [3]{x^{12} \left (-\cosh \left (\frac {3 c_1}{4}\right )\right )-x^{12} \sinh \left (\frac {3 c_1}{4}\right )+2 x^6 \cosh \left (\frac {3 c_1}{8}\right )+2 x^6 \sinh \left (\frac {3 c_1}{8}\right )+\sqrt {x^6 \left (\cosh \left (\frac {15 c_1}{16}\right )+\sinh \left (\frac {15 c_1}{16}\right )\right ) \left (\left (x^6-1\right ) \cosh \left (\frac {3 c_1}{16}\right )+\left (x^6+1\right ) \sinh \left (\frac {3 c_1}{16}\right )\right ){}^3}-1}}{x^6 \cosh \left (\frac {3 c_1}{8}\right )+x^6 \sinh \left (\frac {3 c_1}{8}\right )-1}+\frac {9+9 i \sqrt {3}}{\sqrt [3]{x^{12} \left (-\cosh \left (\frac {3 c_1}{4}\right )\right )-x^{12} \sinh \left (\frac {3 c_1}{4}\right )+2 x^6 \cosh \left (\frac {3 c_1}{8}\right )+2 x^6 \sinh \left (\frac {3 c_1}{8}\right )+\sqrt {x^6 \left (\cosh \left (\frac {15 c_1}{16}\right )+\sinh \left (\frac {15 c_1}{16}\right )\right ) \left (\left (x^6-1\right ) \cosh \left (\frac {3 c_1}{16}\right )+\left (x^6+1\right ) \sinh \left (\frac {3 c_1}{16}\right )\right ){}^3}-1}}+18} y(x)\to x^2-\frac {18 x^2}{-\frac {9 i \left (\sqrt {3}-i\right ) \sqrt [3]{x^{12} \left (-\cosh \left (\frac {3 c_1}{4}\right )\right )-x^{12} \sinh \left (\frac {3 c_1}{4}\right )+2 x^6 \cosh \left (\frac {3 c_1}{8}\right )+2 x^6 \sinh \left (\frac {3 c_1}{8}\right )+\sqrt {x^6 \left (\cosh \left (\frac {15 c_1}{16}\right )+\sinh \left (\frac {15 c_1}{16}\right )\right ) \left (\left (x^6-1\right ) \cosh \left (\frac {3 c_1}{16}\right )+\left (x^6+1\right ) \sinh \left (\frac {3 c_1}{16}\right )\right ){}^3}-1}}{x^6 \cosh \left (\frac {3 c_1}{8}\right )+x^6 \sinh \left (\frac {3 c_1}{8}\right )-1}+\frac {9-9 i \sqrt {3}}{\sqrt [3]{x^{12} \left (-\cosh \left (\frac {3 c_1}{4}\right )\right )-x^{12} \sinh \left (\frac {3 c_1}{4}\right )+2 x^6 \cosh \left (\frac {3 c_1}{8}\right )+2 x^6 \sinh \left (\frac {3 c_1}{8}\right )+\sqrt {x^6 \left (\cosh \left (\frac {15 c_1}{16}\right )+\sinh \left (\frac {15 c_1}{16}\right )\right ) \left (\left (x^6-1\right ) \cosh \left (\frac {3 c_1}{16}\right )+\left (x^6+1\right ) \sinh \left (\frac {3 c_1}{16}\right )\right ){}^3}-1}}+18} \end{align*}