Internal problem ID [3803]
Book: Ordinary differential equations and their solutions. By George Moseley Murphy.
1960
Section: Various 20
Problem number: 551.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [_rational, [_Abel, `2nd type`, `class B`]]
\[ \boxed {x \left (1-x -2 y\right ) y^{\prime }+\left (2 x +y+1\right ) y=0} \]
✓ Solution by Maple
Time used: 0.016 (sec). Leaf size: 389
dsolve(x*(1-x-2*y(x))*diff(y(x),x)+(1+2*x+y(x))*y(x) = 0,y(x), singsol=all)
\begin{align*} y \left (x \right ) &= \frac {3 \,5^{\frac {1}{3}} {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 c_{1} x^{2}-160 c_{1} x +80 c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {1}{3}}}{40 c_{1}}+\frac {3 x 5^{\frac {2}{3}}}{40 {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 c_{1} x^{2}-160 c_{1} x +80 c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {1}{3}}}+x -1 \\ y \left (x \right ) &= \frac {\frac {3 \,5^{\frac {1}{3}} \left (-1-i \sqrt {3}\right ) {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 \left (x -1\right )^{2} c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {2}{3}}}{80}+\frac {3 c_{1} \left (\frac {80 \left (x -1\right ) {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 \left (x -1\right )^{2} c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {1}{3}}}{3}+5^{\frac {2}{3}} \left (i \sqrt {3}-1\right ) x \right )}{80}}{c_{1} {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 \left (x -1\right )^{2} c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {1}{3}}} \\ y \left (x \right ) &= -\frac {3 \left (5^{\frac {1}{3}} \left (1-i \sqrt {3}\right ) {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 \left (x -1\right )^{2} c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {2}{3}}+c_{1} \left (\frac {80 \left (1-x \right ) {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 \left (x -1\right )^{2} c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {1}{3}}}{3}+5^{\frac {2}{3}} x \left (1+i \sqrt {3}\right )\right )\right )}{80 {\left (x \left (\sqrt {5}\, \sqrt {\frac {80 \left (x -1\right )^{2} c_{1} -x}{c_{1}}}+20 x -20\right ) c_{1}^{2}\right )}^{\frac {1}{3}} c_{1}} \\ \end{align*}
✓ Solution by Mathematica
Time used: 39.917 (sec). Leaf size: 463
DSolve[x(1-x-2 y[x])y'[x]+(1+2 x+y[x])y[x]==0,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to -\frac {\sqrt [3]{2} x}{\sqrt [3]{-27 c_1{}^2 x^2+\sqrt {108 c_1{}^3 x^3+\left (27 c_1{}^2 x-27 c_1{}^2 x^2\right ){}^2}+27 c_1{}^2 x}}+\frac {\sqrt [3]{-27 c_1{}^2 x^2+\sqrt {108 c_1{}^3 x^3+\left (27 c_1{}^2 x-27 c_1{}^2 x^2\right ){}^2}+27 c_1{}^2 x}}{3 \sqrt [3]{2} c_1}+x-1 \\ y(x)\to \frac {\left (1+i \sqrt {3}\right ) x}{2^{2/3} \sqrt [3]{-27 c_1{}^2 x^2+\sqrt {108 c_1{}^3 x^3+\left (27 c_1{}^2 x-27 c_1{}^2 x^2\right ){}^2}+27 c_1{}^2 x}}-\frac {\left (1-i \sqrt {3}\right ) \sqrt [3]{-27 c_1{}^2 x^2+\sqrt {108 c_1{}^3 x^3+\left (27 c_1{}^2 x-27 c_1{}^2 x^2\right ){}^2}+27 c_1{}^2 x}}{6 \sqrt [3]{2} c_1}+x-1 \\ y(x)\to \frac {\left (1-i \sqrt {3}\right ) x}{2^{2/3} \sqrt [3]{-27 c_1{}^2 x^2+\sqrt {108 c_1{}^3 x^3+\left (27 c_1{}^2 x-27 c_1{}^2 x^2\right ){}^2}+27 c_1{}^2 x}}-\frac {\left (1+i \sqrt {3}\right ) \sqrt [3]{-27 c_1{}^2 x^2+\sqrt {108 c_1{}^3 x^3+\left (27 c_1{}^2 x-27 c_1{}^2 x^2\right ){}^2}+27 c_1{}^2 x}}{6 \sqrt [3]{2} c_1}+x-1 \\ y(x)\to \text {Indeterminate} \\ y(x)\to x-1 \\ \end{align*}