32.15 problem 949

Internal problem ID [4183]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 32
Problem number: 949.
ODE order: 1.
ODE degree: 2.

CAS Maple gives this as type [_quadrature]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 33

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

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

Solution by Mathematica

Time used: 0.146 (sec). Leaf size: 47

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

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