4.23 problem 23 (c)

Internal problem ID [5320]

Book: Schaums Outline. Theory and problems of Differential Equations, 1st edition. Frank Ayres. McGraw Hill 1952
Section: Chapter 6. Equations of first order and first degree (Linear equations). Supplemetary problems. Page 39
Problem number: 23 (c).
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_Bernoulli]

\[ \boxed {y^{3} x -y^{3}+3 y^{\prime } y^{2} x=x^{2} {\mathrm e}^{x}} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 101

dsolve((x*y(x)^3-y(x)^3-x^2*exp(x))+(3*x*y(x)^2)*diff(y(x),x)=0,y(x), singsol=all)
 

\begin{align*} y \left (x \right ) &= \frac {2^{\frac {2}{3}} {\left (\left ({\mathrm e}^{2 x}+2 c_{1} \right ) x \,{\mathrm e}^{2 x}\right )}^{\frac {1}{3}} {\mathrm e}^{-x}}{2} \\ y \left (x \right ) &= -\frac {2^{\frac {2}{3}} {\left (\left ({\mathrm e}^{2 x}+2 c_{1} \right ) x \,{\mathrm e}^{2 x}\right )}^{\frac {1}{3}} \left (1+i \sqrt {3}\right ) {\mathrm e}^{-x}}{4} \\ y \left (x \right ) &= \frac {2^{\frac {2}{3}} {\left (\left ({\mathrm e}^{2 x}+2 c_{1} \right ) x \,{\mathrm e}^{2 x}\right )}^{\frac {1}{3}} \left (i \sqrt {3}-1\right ) {\mathrm e}^{-x}}{4} \\ \end{align*}

Solution by Mathematica

Time used: 0.854 (sec). Leaf size: 117

DSolve[(x*y[x]^3-y[x]^3-x^2*Exp[x])+(3*x*y[x]^2)*y'[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to -\sqrt [3]{-\frac {1}{2}} e^{-x/3} \sqrt [3]{x} \sqrt [3]{e^{2 x}+2 c_1} \\ y(x)\to \frac {e^{-x/3} \sqrt [3]{x} \sqrt [3]{e^{2 x}+2 c_1}}{\sqrt [3]{2}} \\ y(x)\to \frac {(-1)^{2/3} e^{-x/3} \sqrt [3]{x} \sqrt [3]{e^{2 x}+2 c_1}}{\sqrt [3]{2}} \\ \end{align*}