Internal problem ID [7112]
Book: Own collection of miscellaneous problems
Section: section 1.0
Problem number: 68.
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]
\[ \boxed {a y y^{\prime \prime }+b y=c} \]
✓ Solution by Maple
Time used: 0.062 (sec). Leaf size: 68
dsolve(a*y(x)*diff(y(x),x$2)+b*y(x)=c,y(x), singsol=all)
\begin{align*} a \left (\int _{}^{y \left (x \right )}\frac {1}{\sqrt {a \left (2 c \ln \left (\textit {\_a} \right )+c_{1} a -2 \textit {\_a} b \right )}}d \textit {\_a} \right )-x -c_{2} &= 0 \\ -a \left (\int _{}^{y \left (x \right )}\frac {1}{\sqrt {a \left (2 c \ln \left (\textit {\_a} \right )+c_{1} a -2 \textit {\_a} b \right )}}d \textit {\_a} \right )-x -c_{2} &= 0 \\ \end{align*}
✓ Solution by Mathematica
Time used: 0.43 (sec). Leaf size: 43
DSolve[a*y[x]*y''[x]+b*y[x]==c,y[x],x,IncludeSingularSolutions -> True]
\[ \text {Solve}\left [\int _1^{y(x)}\frac {1}{\sqrt {c_1+\frac {2 (c \log (K[1])-b K[1])}{a}}}dK[1]{}^2=(x+c_2){}^2,y(x)\right ] \]