30.38 problem 898

Internal problem ID [4134]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 30
Problem number: 898.
ODE order: 1.
ODE degree: 2.

CAS Maple gives this as type [[_1st_order, _with_linear_symmetries], _rational]

\[ \boxed {{y^{\prime }}^{2} x^{2}-2 x y y^{\prime }+y \left (y+1\right )=x} \]

Solution by Maple

Time used: 0.125 (sec). Leaf size: 22

dsolve(x^2*diff(y(x),x)^2-2*x*diff(y(x),x)*y(x)-x+y(x)*(1+y(x)) = 0,y(x), singsol=all)
 

\begin{align*} y \left (x \right ) &= x \\ y \left (x \right ) &= c_{1} \sqrt {x}-\frac {x \,c_{1}^{2}}{4}+x -1 \\ \end{align*}

Solution by Mathematica

Time used: 0.115 (sec). Leaf size: 55

DSolve[x^2 (y'[x])^2-2 x y[x] y'[x]-x+y[x](1+y[x])==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to x+\frac {c_1{}^2 x}{4}-i c_1 \sqrt {x}-1 \\ y(x)\to x+\frac {c_1{}^2 x}{4}+i c_1 \sqrt {x}-1 \\ \end{align*}