Internal problem ID [1025]
Book: Elementary differential equations with boundary value problems. William F. Trench.
Brooks/Cole 2001
Section: Chapter 2, First order equations. Transformation of Nonlinear Equations into Separable
Equations. Section 2.4 Page 68
Problem number: 50.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [[_homogeneous, `class G`], _rational, [_Abel, `2nd type`, `class B`]]
\[ \boxed {2 x \left (y+2 \sqrt {x}\right ) y^{\prime }-\left (y+\sqrt {x}\right )^{2}=0} \]
✓ Solution by Maple
Time used: 0.016 (sec). Leaf size: 50
dsolve(2*x*(y(x)+2*sqrt(x))*diff(y(x),x)=(y(x)+sqrt(x))^2,y(x), singsol=all)
\begin{align*} y \left (x \right ) &= \frac {-2 x +\sqrt {x^{2} \left (\ln \left (x \right )-c_{1} +4\right )}}{\sqrt {x}} \\ y \left (x \right ) &= -\frac {2 x +\sqrt {x^{2} \left (\ln \left (x \right )-c_{1} +4\right )}}{\sqrt {x}} \\ \end{align*}
✓ Solution by Mathematica
Time used: 0.61 (sec). Leaf size: 68
DSolve[2*x*(y[x]+2*Sqrt[x])*y'[x]==(y[x]+Sqrt[x])^2,y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to -2 \sqrt {x}-\sqrt {\frac {1}{x^2}} x \sqrt {x (\log (x)+4+c_1)} \\ y(x)\to -2 \sqrt {x}+\sqrt {\frac {1}{x^2}} x \sqrt {x (\log (x)+4+c_1)} \\ \end{align*}