18.14 problem 490

Internal problem ID [3236]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 18
Problem number: 490.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, class A], _rational, [_Abel, 2nd type, class A]]

Solve \begin {gather*} \boxed {\left (7 x +5 y\right ) y^{\prime }+10 x +8 y=0} \end {gather*}

Solution by Maple

Time used: 0.188 (sec). Leaf size: 51

dsolve((7*x+5*y(x))*diff(y(x),x)+10*x+8*y(x) = 0,y(x), singsol=all)
 

\[ y \relax (x ) = -\frac {x \left (2 c_{1}^{2}-c_{1}^{2} \RootOf \left (\textit {\_Z}^{25} x^{5} c_{1}-2 \textit {\_Z}^{20} x^{5} c_{1}+\textit {\_Z}^{15} x^{5} c_{1}-1\right )^{5}\right )}{c_{1}^{2}} \]

Solution by Mathematica

Time used: 2.025 (sec). Leaf size: 276

DSolve[(7 x+5 y[x])y'[x]+10 x+8 y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \text {Root}\left [\text {$\#$1}^5+8 \text {$\#$1}^4 x+25 \text {$\#$1}^3 x^2+38 \text {$\#$1}^2 x^3+28 \text {$\#$1} x^4+8 x^5-e^{c_1}\&,1\right ] \\ y(x)\to \text {Root}\left [\text {$\#$1}^5+8 \text {$\#$1}^4 x+25 \text {$\#$1}^3 x^2+38 \text {$\#$1}^2 x^3+28 \text {$\#$1} x^4+8 x^5-e^{c_1}\&,2\right ] \\ y(x)\to \text {Root}\left [\text {$\#$1}^5+8 \text {$\#$1}^4 x+25 \text {$\#$1}^3 x^2+38 \text {$\#$1}^2 x^3+28 \text {$\#$1} x^4+8 x^5-e^{c_1}\&,3\right ] \\ y(x)\to \text {Root}\left [\text {$\#$1}^5+8 \text {$\#$1}^4 x+25 \text {$\#$1}^3 x^2+38 \text {$\#$1}^2 x^3+28 \text {$\#$1} x^4+8 x^5-e^{c_1}\&,4\right ] \\ y(x)\to \text {Root}\left [\text {$\#$1}^5+8 \text {$\#$1}^4 x+25 \text {$\#$1}^3 x^2+38 \text {$\#$1}^2 x^3+28 \text {$\#$1} x^4+8 x^5-e^{c_1}\&,5\right ] \\ \end{align*}