Internal problem ID [3874]
Book: Ordinary differential equations and their solutions. By George Moseley Murphy.
1960
Section: Various 22
Problem number: 626.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [_exact, _rational]
\[ \boxed {\left (x^{2}-3 y^{2}\right ) y^{\prime }+2 y x=-1} \]
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 298
dsolve((x^2-3*y(x)^2)*diff(y(x),x)+1+2*x*y(x) = 0,y(x), singsol=all)
\begin{align*} y \left (x \right ) &= \frac {\left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {2}{3}}+12 x^{2}}{6 \left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {1}{3}}} \\ y \left (x \right ) &= \frac {12 i \sqrt {3}\, x^{2}-i \left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {2}{3}} \sqrt {3}-12 x^{2}-\left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {2}{3}}}{12 \left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {1}{3}}} \\ y \left (x \right ) &= \frac {\left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {1}{3}} \left (i \sqrt {3}-1\right )}{12}-\frac {\left (1+i \sqrt {3}\right ) x^{2}}{\left (108 x +108 c_{1} +12 \sqrt {-12 x^{6}+81 c_{1}^{2}+162 c_{1} x +81 x^{2}}\right )^{\frac {1}{3}}} \\ \end{align*}
✓ Solution by Mathematica
Time used: 4.724 (sec). Leaf size: 307
DSolve[(x^2-3 y[x]^2)y'[x]+1+2 x y[x]==0,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to -\frac {\sqrt [3]{\sqrt {-108 x^6+729 (x-c_1){}^2}-27 x+27 c_1}}{3 \sqrt [3]{2}}-\frac {\sqrt [3]{2} x^2}{\sqrt [3]{\sqrt {-108 x^6+729 (x-c_1){}^2}-27 x+27 c_1}} \\ y(x)\to \frac {\left (1-i \sqrt {3}\right ) \sqrt [3]{\sqrt {-108 x^6+729 (x-c_1){}^2}-27 x+27 c_1}}{6 \sqrt [3]{2}}+\frac {\left (1+i \sqrt {3}\right ) x^2}{2^{2/3} \sqrt [3]{\sqrt {-108 x^6+729 (x-c_1){}^2}-27 x+27 c_1}} \\ y(x)\to \frac {\left (1+i \sqrt {3}\right ) \sqrt [3]{\sqrt {-108 x^6+729 (x-c_1){}^2}-27 x+27 c_1}}{6 \sqrt [3]{2}}+\frac {\left (1-i \sqrt {3}\right ) x^2}{2^{2/3} \sqrt [3]{\sqrt {-108 x^6+729 (x-c_1){}^2}-27 x+27 c_1}} \\ \end{align*}